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easyMCQNEET (UG) 20172026Physics
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A positive charge is moved from A to B in several regions of equipotentials. In all cases, the potential difference between A and B is the same ( to ). Which statement is correct?

  1. A
    In all the four cases the work done is the same.
  2. B
    Minimum work is required in the case where the distance is maximum.
  3. C
    Maximum work is required in the case where the distance is minimum.
  4. D
    Work done depends on the path taken.

Solution & Step-by-step Explanation

Work done in moving a charge between two points is . Since the potential difference is the same () for all cases, and the charge is the same, the work done must be identical regardless of the distance or path.

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image
A positive charge is moved from A to B in several regions of equipotentials. In all cases, the potential difference between A and B is the same ( to ). Which statement is correct?
A
In all the four cases the work done is the same.
B
Minimum work is required in the case where the distance is maximum.
C
Maximum work is required in the case where the distance is minimum.
D
Work done depends on the path taken.

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Electrostatic Potential and CapacitanceEquipotential Surfaces

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