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Question

Two points P and Q are maintained at the potential of 10 V and 4V respectively. The work done in moving 100 electrons from P to Q is:

A
19×107J
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B
9.60×1017J
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C
2.24×1016J
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D
2.24×1016J
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Solution

The correct option is B 2.24×1016J

where,

n=numberofelectron

q=ne=100×1.6×1016 C

ΔV=potentialdifference

W=100×1.6×1019×(410)

W=2.24×1016J

Hence, work done is 2.24×1016J


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