Question

Assertion (A) : If changing current is flowing through a machine with iron parts, it results in loss of energy.
Reason (R): Changing magnetic flux through an area of the iron parts causes eddy currents.

• A. both A and R are individually true and R is the correct explanation of A
• B. both A and R are individually true but R is not the correct explanation of A
• C. A is true but R is false
• D. both A and R are false

Answer 1

The correct option is A both A and R are individually true and R is the correct explanation of A

Due to Faraday's Law of induction, there is a potential difference created because of change in flux.
This results in currents called eddy currents.
These eddy currents result in energy loss in the form of heat (in accordance with Joule's law of heating).