First slide

Electrical machines and devices

Question

A transformer has turn ratio 100/1. If secondary coil has 4 amp current then current in primary coil is

Moderate

A

4 A
B

0.04 A
C

0.4 A
D

400 A

Solution

$\frac{i_{p}}{i_{s}} = \frac{N_{s}}{N_{p}} \Rightarrow \frac{i_{p}}{4} = \frac{1}{100} \Rightarrow i_{p} = 0 .04 A$

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