A) 1 A
B) 2 A
C) 3 A
D) 6 A
Correct Answer: D
Solution :
\[i\,(t)=-\frac{1}{R}\frac{d\phi }{dt}=2bt-3a{{t}^{2}}\] |
i is maximum when \[\frac{di}{dt}=0\] |
or \[t=\frac{2b}{6a}\] |
Using values, at t=1 s, |
i maximum its value =\[12-6=6A\] |
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