A) 4 W
B) 8 W
C) 12 W
D) 2 W
Correct Answer: A
Solution :
Motional \[emf\] produced \[=B\upsilon \ell =4\] volt Since velocity of the vector is constant, the rate of change in flux will be a constant i.e., \[\frac{di}{dt}=1\,A/s\] Power in the inductor \[={{P}_{L}}=\frac{d}{dt}\left( \frac{1}{2}L{{i}^{2}} \right)=Li\frac{di}{dt}\] \[\Rightarrow \,\,\,{{P}_{L}}=4\times 1\times 1=4\] watt.You need to login to perform this action.
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