Question

Three charges q1 = 1 × 10–6 , q2 = 2 × 10–6 , q3 = –3 × 10–6 C have been placed, as shown in figure, in four surfaces S1, S2, S3 and S4 electrical flux emitted from the surface S2 in N–m2/C will be

Answer 1

SOLUTION- REFER TO THE ATTACHMENT