A) \[\left( \frac{8}{7} \right)A\]
B) \[\left( \frac{7}{8} \right)A\]
C) \[8\,A\]
D) \[7\,A\]
Correct Answer: B
Solution :
\[e=-N\frac{d\Phi }{dt}=-NA\frac{dB}{dt}=-80\times \frac{22}{7}\times {{(0.1)}^{2}}\left( \frac{2.2}{0.4} \right)\] \[I=\frac{e}{R}=80\times \frac{22}{7}\times \frac{{{(0.1)}^{2}}\times 5}{11}=\frac{8}{7}A.\] Hence, the correction option is [b].You need to login to perform this action.
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