Physics - EMI/AC Question with Solution | TestHub

If initial value of current is zero, then it will take $\frac{T}{4}$ time to reach the peak value, where $T=$ time period.

As we know, $\omega =120\pi$

Therefore,

$t=\frac{T}{4}=\frac{\frac{2\pi }{\omega }}{4}$ $=\frac{\pi }{2\omega }=\frac{\pi }{2\times 120\pi }=\frac{1}{240}\text{s}$