Question

Region A has charge of -3q, Region B has a charge of +4q, and Region C contents no charges. Which regions will have an electric field of zero? Which regions will the electric potential be zero?

Step 1

Let Q_{A} be the charge contained in the region A, Q_{B} be the charge contained in region B, and Q_{C} be the charge contained in region C.

Write the value of charge as given in the question.

Step 2

Write the expression for the electric field in a given region.

Step 3

As k and r are non-zero variables, compare the electric field in...

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