First slide

Electrical machines and devices

Question

In a step-up transformer the voltage in the primary is 220 V and the current is 5A. The secondary voltage is found to be 22000V. The current in the secondary (neglect losses) is

Moderate

A

5 A
B

50 A
C

500 A
D

0.05 A

Solution

$\frac{V_{p}}{V_{s}} = \frac{i_{s}}{i_{p}} \Rightarrow \frac{220}{22000} = \frac{i_{s}}{5} \Rightarrow i_{s} = 0 .05 amp$

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