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Question

A charge q is moved from point A to point B in an uniform electric field along 4 paths as shown below. The work done to move the charge along the paths is W1,W2, W3 and W4 respectively. Choose the correct statement.


A
W4>W1>W2>W3
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B
W4<W1<W2<W3
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C
W4=W1=W2=W3
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D
W4<W1=W2<W3
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Solution

The correct option is C W4=W1=W2=W3
The electrostatic force is conservative force. So the work done to move a charge from A to B on all paths will be the same. The work done does not depend on the path, but it depends on the initial and final position only.
W4=W1=W2=W3=W4

Hence, option (c) is correct.

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