A) half
B) equal
C) two times
D) four times
Correct Answer: C
Solution :
Power \[P=\frac{{{e}^{2}}}{R}\]and \[e=-\frac{d\phi }{dt}\] Here, \[\phi =NBA\] \[\therefore \] \[e=-NA\left( \frac{dB}{dt} \right)\] and \[R\propto \frac{1}{{{r}^{2}}}\] \[P\propto {{N}^{2}}{{r}^{4}}\] \[\therefore \] \[\frac{{{P}_{1}}}{{{P}_{2}}}=1\]You need to login to perform this action.
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