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easyMCQNEET 20172026Physics
4 marks (−1)

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

  1. A
    Maximum work is required to move in figure (c).
  2. B
    In all the four cases the work done is the same.
  3. C
    Minimum work is required to move in figure (a).
  4. D
    Maximum work is required to move in figure (b).

Solution & Step-by-step Explanation

Work done by an external agent in moving a charge between two points in an electric field is . In all four diagrams, the charge is moved from a point at to a point at . Therefore, is constant for all cases, and the work done is identical.

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Try it yourself before checking the explanation above.

The diagrams below show regions of equipotentials. A positive charge is moved from to in each diagram.
image
A
Maximum work is required to move in figure (c).
B
In all the four cases the work done is the same.
C
Minimum work is required to move in figure (a).
D
Maximum work is required to move in figure (b).

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ElectrostaticsEquipotential Surfaces

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