Q. 84.0( 6 Votes )

Consider the situation of figure. The work done in taking a point charge from P to A is WA, from P to B is WB and from P to C is WC.

A. WA < WB < WC

B. WA > WB > WC

C. WA = WB = WC

D.None of these

Answer :

Since electric field is a conservative field and therefore electric force is also a conservative force. Therefore, work done will not depend in the path taken.

As for a conservative force field, work done on a charge does not depend on the path taken by the charge but depends only on the initial and final points. Therefore, in this situation,

i.e. WA = WB = WC

The work done in taking a point charge from P to all the points A, B and C is the same.

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