問題詳情
53. There are two point-charges −Q, and 2Q located at the distance 2d, and 4d from the origin O, respectively. What is the electricfield at the origin O? (Vacuum permittivity is ε0)
(A) 0
(B)E=
(C)E=
(D)E=
(E)E=
53. There are two point-charges −Q, and 2Q located at the distance 2d, and 4d from the origin O, respectively. What is the electricfield at the origin O? (Vacuum permittivity is ε0)