-Véctơ cường độ điện trường tổng hợp tại C:" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">C:C: EC→=E1→+E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC−→=E1−→+E2−→EC→=E1→+E2→Vì q1<0" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q1<0q1<0 nên E1→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E1−→E1→ hướng từ C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">CC đến A" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">AA.Để EC→//AB,E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC−→//AB,E2−→EC→//AB,E2→ phải hướng ra xa B" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">BB và q2>0" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2>0q2>0 (nếu q2<0,E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2<0,E2−→q2<0,E2→ hướng vào B" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">BB)EC→=E1→+E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC−→=E1−→+E2−→EC→=E1→+E2→ sẽ nằm trong góc ACB^" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ACBˆACB^ và không thể song song với AB" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ABAB)- Ta có E1=k|q1|AC2=2.104V/m" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E1=k|q1|AC2=2.104V/mE1=k|q1|AC2=2.104V/mĐặt ACB^=α" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ACBˆ=αACB^=α từ hình vẽ ta suy ra : EC=E1.tan⁡α=E1.ABAC=1,5.104V/m" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC=E1.tanα=E1.ABAC=1,5.104V/mEC=E1.tanα=E1.ABAC=1,5.104V/m E2=E1cos⁡α=E1ACBC=E1.BCAC=E1.AB2+AC2AC" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E2=E1cosα=E1ACBC=E1.BCAC=E1.AB2+AC2−−−−−−−−−−√ACE2=E1cosα=E1ACBC=E1.BCAC=E1.AB2+AC2AC E2=2,5.104V/m" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E2=2,5.104V/mE2=2,5.104V/mTa có : E2=k.|q2|BC2" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E2=k.|q2|BC2E2=k.|q2|BC2Suy ra : |q2|=E2.BC2k=E2(AB2+AC2)k=6,94.10−9C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">|q2|=E2.BC2k=E2(AB2+AC2)k=6,94.10−9C|q2|=E2.BC2k=E2(AB2+AC2)k=6,94.10−9CVì q2>0" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2>0q2>0 nên q2=6,94.10−9C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2=6,94.10−9CEC→=E1→+E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2>0" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2=6,94.10−9C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">
- Véctơ cường độ điện trường tổng hợp tại C :C:" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">C: EC→=E1→+E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC−→=E1−→+E2−→EC→=E1→+E2→Vì q1<0" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q1<0q1<0 nên E1→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E1−→E1→ hướng từ C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">CC đến A" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">AA.Để EC→//AB,E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC−→//AB,E2−→EC→//AB,E2→ phải hướng ra xa B" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">BB và q2>0" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2>0q2>0 (nếu q2<0,E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2<0,E2−→q2<0,E2→ hướng vào B" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">BB)EC→=E1→+E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC−→=E1−→+E2−→EC→=E1→+E2→ sẽ nằm trong góc ACB^" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ACBˆACB^ và không thể song song với AB" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ABAB)- Ta có E1=k|q1|AC2=2.104V/m" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E1=k|q1|AC2=2.104V/mE1=k|q1|AC2=2.104V/mĐặt ACB^=α" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ACBˆ=αACB^=α từ hình vẽ ta suy ra : EC=E1.tan⁡α=E1.ABAC=1,5.104V/m" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC=E1.tanα=E1.ABAC=1,5.104V/mEC=E1.tanα=E1.ABAC=1,5.104V/m E2=E1cos⁡α=E1ACBC=E1.BCAC=E1.AB2+AC2AC" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E2=E1cosα=E1ACBC=E1.BCAC=E1.AB2+AC2−−−−−−−−−−√ACE2=E1cosα=E1ACBC=E1.BCAC=E1.AB2+AC2AC E2=2,5.104V/m" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E2=2,5.104V/mE2=2,5.104V/mTa có : E2=k.|q2|BC2" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E2=k.|q2|BC2E2=k.|q2|BC2Suy ra : |q2|=E2.BC2k=E2(AB2+AC2)k=6,94.10−9C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">|q2|=E2.BC2k=E2(AB2+AC2)k=6,94.10−9C|q2|=E2.BC2k=E2(AB2+AC2)k=6,94.10−9CVì q2>0" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2>0q2>0 nên q2=6,94.10−9C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2=6,94.10−9Cq2=6,94.10−9C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">
-Véctơ cường độ điện trường tổng hợp tại C:" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">
C:C: EC→=E1→+E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC−→=E1−→+E2−→EC→=E1→+E2→Vì q1<0" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q1<0q1<0 nên E1→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E1−→E1→ hướng từ C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">CC đến A" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">AA.Để EC→//AB,E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC−→//AB,E2−→EC→//AB,E2→ phải hướng ra xa B" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">BB và q2>0" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2>0q2>0 (nếu q2<0,E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2<0,E2−→q2<0,E2→ hướng vào B" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">BB)EC→=E1→+E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC−→=E1−→+E2−→EC→=E1→+E2→ sẽ nằm trong góc ACB^" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ACBˆACB^ và không thể song song với AB" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ABAB)- Ta có E1=k|q1|AC2=2.104V/m" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E1=k|q1|AC2=2.104V/mE1=k|q1|AC2=2.104V/mĐặt ACB^=α" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ACBˆ=αACB^=α từ hình vẽ ta suy ra : EC=E1.tan⁡α=E1.ABAC=1,5.104V/m" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">EC=E1.tanα=E1.ABAC=1,5.104V/mEC=E1.tanα=E1.ABAC=1,5.104V/m E2=E1cos⁡α=E1ACBC=E1.BCAC=E1.AB2+AC2AC" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E2=E1cosα=E1ACBC=E1.BCAC=E1.AB2+AC2−−−−−−−−−−√ACE2=E1cosα=E1ACBC=E1.BCAC=E1.AB2+AC2AC E2=2,5.104V/m" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E2=2,5.104V/mE2=2,5.104V/mTa có : E2=k.|q2|BC2" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">E2=k.|q2|BC2E2=k.|q2|BC2Suy ra : |q2|=E2.BC2k=E2(AB2+AC2)k=6,94.10−9C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">|q2|=E2.BC2k=E2(AB2+AC2)k=6,94.10−9C|q2|=E2.BC2k=E2(AB2+AC2)k=6,94.10−9CVì q2>0" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2>0q2>0 nên q2=6,94.10−9C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2=6,94.10−9C
EC→=E1→+E2→" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2>0" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">q2=6,94.10−9C" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-wrap: normal; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">