First slide

Phasors and Phasor Diagrams

Question

The resistance of a coil for DC is R ohms. In AC, the resistance

Moderate

A

Will remain same
B

Will increase
C

Will decrease
D

Will be zero

Solution

The coil has inductance L besides the resistance R. Hence, for AC its effective resistance $\sqrt{R^{2} + X_{L}^{2}}$ will be larger than its resistance R for DC.

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