An alternating current takes 3.375 ms to reach 15A for the first time after becoming instantaneously zero. The Frequency of the current is 40 Hz. Find the Maximum value of the alternating current.

0

1.5kviews

An alternating current takes 3.375 ms to reach 15A for the first time after becoming instantaneously zero. The Frequency of the current is 40 Hz. Find the Maximum value of the alternating current.

written 2.9 years ago by

teamques10 ★ 64k

modified 2.1 years ago by

pedsangini276 • 4.7k

engineering mechanics

ADD COMMENT EDIT

1 Answer

0

190views

written 2.9 years ago by

teamques10 ★ 64k

Given:

t = 3.375 ms = 0.003375

T = $\dfrac{1}{f}$ = 0.025 s

i = 15A

Formula:

$i=i_m \sin wt\\ w=\dfrac{2\pi}{T}$

Solution:

$15=i_m \sin \left (\dfrac{2\pi \times 3.375\times10^{-3}}{0.025}\right)\\ \therefore i_m = 1013.24 A$

ADD COMMENT EDIT

Please log in to add an answer.