AIPMT MAINS2011Physics-Electrostatics
AIPMT MAINS 2011 Physics Potential Energy MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Three charges, each +q, are placed at the corners of an isosceles triangle ABC of sides BC and AC, 2a. D and E are the mid points of BC and CA. The work done in taking a charge Q from D to E is
A
Zero
B
3qQ/4πε₀a
C
3qQ/8πε₀a
D
qQ/4πε₀a
Correct Answer
Option A
Detailed Explanation
Points D and E are at the same potential due to symmetry, so no work is done in moving a charge between them.
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