Figure shows some equipotential lines distributed in space. A charged object is moved from point A to point B.
The work done is the same in figure (i), (ii) and (iii).
The work done in figure (i) is the greatest.
The work done in figure (ii) is the least.
The work done is the same in figure (iii) is greater than figure (ii) but equal to that in figure (i).
A
The work done is the same in figure (i), (ii) and (iii).
B
The work done in figure (i) is the greatest.
C
The work done in figure (ii) is the least.
D
The work done is the same in figure (iii) is greater than figure (ii) but equal to that in figure (i).
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Solution
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In all the three figures, VA=20V and VB=40V Work done in carrying a charge q from A to B is W=q(VB−VA) Hence the work done is same in all figures.
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