First slide

Alternating current and voltage

Question

Power factor of the A.C. circuit as shown in the figure is

Easy

A

0.8
B

0.6
C

0.2
D

none of these

Solution

$\tan φ = \frac{v_{L} - v_{C}}{v_{R}} = \frac{80 - 50}{40} = \frac{3}{4}$
power factor $\cos φ = \frac{4}{5} = 0.8$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App