AIPMT PRELIMS2005Physics-Electrostatics

AIPMT PRELIMS 2005 Physics Electric Potential Energy MCQ Question

Type: MCQ-conceptual-Hard-Class 12

Two charges q₁ and q₂ are placed 30 cm apart, as shown in the figure. A third charge q₃ is moved along the arc of a circle of radius 40 cm from C to D. The change in the potential energy of the system is (q₃/4πε₀)k, where k is:

Question diagram
A

8q₂

B

8q₁

C

4q₂

D

4q₁

Correct Answer

Option A

Detailed Explanation

The potential energy change depends on the work done in moving the charge q₃ along the arc. The configuration suggests symmetry, and the potential energy change is proportional to q₁ due to the geometry.

Found an issue with this question?