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NEET2017PhysicsElectrostaticsActual

The diagrams below show regions of equipotential. A positive charge is moved from A to B in each diagram.

Options

  1. AMaximum work is required to move q in figure (c).
  2. BIn all the four cases the work done is the same.
  3. CMinimum work is required to move q in figure (a).
  4. DMaximum work is required to move q in figure (b).

Correct answer

B. In all the four cases the work done is the same.

Step-by-step solution

Work done, W = q Δ V . Δ V is same in all the cases so work is done will be same in all the cases.

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