Question

- What are step-up and step-down transformers? The primary and secondary coils of
a transformer each have inductance between the windings is 4 x 10-6 H. What
percentage of the flux from one coil reaches the other?
1.​

Answer 1

Answer:

A transformer designed to increase the voltage from primary to secondary is called a step-up transformer. A transformer designed to reduce the voltage from primary to secondary is called a step-down transformer.

Explanation:

Self-inductance, L 200 x 10 H

Mutual inductance, M = 4x 10 H

Percentage of flux transfer = "M"/"L' xx 100

= '(4 xx 10-6)/(200 xx 10-6) xx 100

= 2%

2 % of the flux from one coil reaches the

other,