Reactance

0
250
12th physics. NCERT notes
  • An ac voltage v = vm sinωt applied to a pure inductor L, drives a current in the inductor i = im sin(ωt – π/2), where im = vm/XL.
  • XL = ωL is called inductive reactance. The current in the inductor lags the voltage by π/2. The average power supplied to an inductor over one complete cycle is zero.
  • An ac voltage v = vm sinωt applied to a capacitor drives a current in the capacitor: i = im sin(ωt + π/2) Here,

  • The current through the capacitor is π/2 ahead of the applied voltage. As in the case of inductor, the average power supplied to a capacitor over one complete cycle is zero.

How useful was this post?

Click on a star to rate it!

Average rating / 5. Vote count:

As you found this post useful...

Follow us on social media!

We are sorry that this post was not useful for you!

Let us improve this post!

LEAVE A REPLY

Please enter your comment!
Please enter your name here