A) \[\text{2}\,\text{V}\]
B) \[\,\text{V}\]
C) \[\frac{\pi }{2}\,\text{V}\]
D) \[\text{2}\,\text{V}\]
Correct Answer: B
Solution :
Magnetic flux \[\phi =B\cdot A\] \[=B\cdot \pi {{r}^{2}}\] Induced emf,\[|e|=\frac{d\phi }{dt}=B\pi 2r\frac{dr}{dt}\] \[=0.025\times \pi \times 2\times 2\times {{10}^{-2}}\times 1\times {{10}^{-3}}\] \[=\pi \,\mu \,V\]You need to login to perform this action.
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