Chapter 7, Problem 11STP

To determine

To Explain: Whether the transformer is step up or step down.

Explanation of Solution

Introduction:

A transformer is used to increase or decrease the voltage of an alternating current.

The number of turns in the primary coil is $20$ while the number of turns in the secondary coil is $2$ . The secondary coil has fewer turns than the primary coil. This type of transformer decreases voltage and hence named as a step-down transformer.

Conclusion:

The transformer is a step down transformer.