A) \[-2F\]
B) \[F/3\]
C) \[-2F/3\]
D) \[-F/3\]
Correct Answer: C
Solution :
[c] \[F\propto \frac{{{I}_{l}}{{I}_{2}}}{d}\] \[F'\propto \frac{2{{I}_{l}}{{I}_{2}}}{3d}\] \[\therefore \frac{F'}{F}=-\frac{2}{3}\Rightarrow F'=-\frac{2F}{3}\]You need to login to perform this action.
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