Chapter 25, Problem 84A

To determine

To Explain: If the real transformer becomes hotter if it is supplied with a small or large current.

Explanation of Solution

Introduction:

A transformer is an electrical device that is used to convert the electrical energy from one circuit to the other. Electrical energy can be sent between the different coils without any connection between circuits.

Transformers can be used in case of isolation where the level of input voltage is equal to the output voltage having two different coils which are not connected to each other.

The real transformers become hot when it is passed with large amount of current. The hysteresis loss and eddy currents causes some loss of energy in the form of heat. The efficiency of the current does not change. The change on the output power changes the input power.

Conclusion:

Hence, the real transformer becomes hotter if it is supplied with large current.