Q.
Consider two configurations in fig (i) and fig(ii)The work done by external agent in changing the configuration from fig(i) to fig(ii) is
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a
Zero
b
−6Gm2a1+12
c
−6Gm2a1−12
d
-6Gn2a2−12
answer is C.
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Detailed Solution
GPE=−Gm1m2r;W=GPE2−GPE1
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