First slide

AC Circuits

Question

The reactance of a coil when used in the domestic ac power supply (220 volt, 50 cycles) is 100 ohm. The self inductance of the coil is nearly

Moderate

A

3.2 henry
B

0.32 henry
C

2.2 henry
D

0.22 henry

Solution

Reactance $= 2 πνL \Rightarrow 100 Ω = 2 \times \frac{22}{7} \times 50 \times L$
$∴ L = 0 .32 henry$

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