A) 10 V
B) 190 V
C) -190 V
D) -10 V
Correct Answer: D
Solution :
\[\varepsilon =-\frac{d\phi }{dt}\] \[=-\frac{d}{dt}(10{{t}^{2}}-50t+250)\] \[=-(20t-50)\] \[{{E}_{t=3s}}=-(20\times 3-50)V\] \[=-10\,V\] Hence, the correction option is [d].You need to login to perform this action.
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