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Electrostatics question

2011 · Q96
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Electrostatics question

2011 · Q96

NEETPhysicsElectrostaticsMCQ+4 / −1
Three charges, each +q, are placed at the corners of an isosceles triangle ABC of sides BC and AC, 2aaa. D and E are the mid points of BC and CA. The work done in taking a charge Q from D to E is

AIPMT 2011 Mains Physics - Electrostatics Question 53 English
  1. A
    3qQ4πε0a{{3qQ} \over {4\pi {\varepsilon _0}a}}4πε0​a3qQ​
  2. B
    3qQ8πε0a{{3qQ} \over {8\pi {\varepsilon _0}a}}8πε0​a3qQ​
  3. C
    qQ4πε0a{{qQ} \over {4\pi {\varepsilon _0}a}}4πε0​aqQ​
  4. D
    zero
View written solutionFree

Correct answer: D

AIPMT 2011 Mains Physics - Electrostatics Question 53 English Explanation

AC = BC

VD = VE

We have, W = Q (VE – VD)

⇒\Rightarrow⇒ W = 0

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