A) 2 volt
B) 4 volt
C) 8 volt
D) 16 volt
Correct Answer: D
Solution :
The magnetic flux linked with a coil is given by \[\text{o }\!\!|\!\!\text{ =3}{{\text{t}}^{2}}+4t+9\] The relation for induced emf is \[E=\frac{d\text{o }\!\!|\!\!\text{ }}{dt}\] \[=\frac{d}{dt}(3{{t}^{2}}+4t+9)\] \[=6t+4\] Hence, the induced emf at \[t=2\]second is \[{{E}_{2}}=6\times 2+4=12+4=16\,\text{volt}\]You need to login to perform this action.
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