Questions
Figure shows some equipotential lines distributed in space. A charged object is moved from point A to point B. Which of the following statements is true?
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a
The work done in Fig. (i) is the greatest.
b
The work done in Fig. (ii) is the least.
c
The work done is the same in Fig. (i), Fig. (ii) and Fig. (iii).
d
The work done in Fig. (iii) is greater than Fig. (ii) but equal to that in Fig. (i).
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Correct option is C
The work done by a electrostatic force is given by W12 = q(V2 - V1 ). Here initial and final potentials are same in all three cases and same charge is moved, so work done is same in all three cases.Similar Questions
In the electric field of a point charge q, a certain charge is carried from point A to B, C, D and E. Then the work done
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