Question Detail

PHY 102 Electromagnetic Induction 2 Objective Question

Question

Which of the following electrical devices is explicitly mentioned as working on the basis of Faraday's law of electromagnetic induction?
Options
A A simple resistive heating element.
B A transformer.
Correct Answer
C A battery providing direct current.
D A light-emitting diode (LED).
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 13 states, 'Electrical equipment like transformers works on the basis of Faraday's law.'

Hint

Think about devices that involve changing magnetic fields to alter voltage or current.

Question Info