A) \[6.28\times {{10}^{-5}}V\]
B) \[3.14\times {{10}^{-5}}V\]
C) \[1.256\times {{10}^{-5}}V\]
D) \[1.57\times {{10}^{-5}}V\]
Correct Answer: A
Solution :
(a) \[6.28\times {{10}^{-5}}V\] Here, \[v=\frac{120}{60}=2\,rps\] Induced emf \[=\left( \frac{1}{2} \right)\omega B{{R}^{2}}=\frac{1}{2}2\pi vB{{R}^{2}}\] \[=3.14\times 2\times 0.4\times {{10}^{-4}}\times {{(0.5)}^{2}}\] \[=0.628\times {{10}^{-4}}=6.28\times {{10}^{-5}}V\]You need to login to perform this action.
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