1. Tardigrade
  2. Question
  3. Physics
  4. The time taken by an alternating current of 50 Hz in reaching from zero to its maximum value will be

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The time taken by an alternating current of $ 50\,Hz $ in reaching from zero to its maximum value will be

J & K CETJ & K CET 2005Alternating Current

Solution:

An alternating current is one whose magnitude changes continuously with time between zero and a maximum value and whose direction reverses periodically. The relation between frequency $(f)$ and time $(T)$ is
$T = \frac{ 1}{ f } = \frac{ 1}{ 50} = 0.02\, s $
image
As is clear from the figure time taken to reach the maximum value is
$ \frac{ T}{ 4 } = \frac{ 0.02 }{ 4} = 0.005 \,s $