Question

A transformer in an electric welding machine draws 3A from a 240V A.C. power line and delivers 400A. What is the potential difference across the secondary of the transformer?

Answer 1

Dear Student,

◆ Answer -

Potential difference across secondary coil = 2.4 V

● Explaination -

# Given -

Ii = 3 A

Io = 300 A

Vi = 240 V

Vo = ?

# Solution -

Potential difference across the secondary of the transformer is calculated by -

Vo = Vi × Ii / Io

Vo = 240 × 3 / 300

Vo = 2.4 V

Therefore, potential difference across the secondary of the transformer is 2.4 V.

Thanks dear. Hope this helps you...