In an ac circuit I = 100 sin 200 πt. The time required for t... | PHYSICS - AC VOLTAGE APPLIED TO AN INDUCTOR | SolveeIt | Solveeit

Today, August 19

Question

In an ac circuit I = 100 sin 200 πt. The time required for the current to achieve its peak value will be

A

$\frac{1}{100}\sec$

B

$\frac{1}{200}\sec$

C

$\frac{1}{300}\sec$

D

$\frac{1}{400}\sec$

Answer

$\frac{1}{400}\sec$

Explanation

Solution

The current takes $\frac{T}{4}$ sec to reach the peak value.

In the given question $\frac{2\pi}{T} = 200\pi \Rightarrow T = \frac{1}{100}\sec$

$\therefore$ Time to reach the peak value $= \frac{1}{400}\sec$