Question

Faraday’s laws are result of the conservation of which quantity?

(a) Momentum

(b) Energy

(c) Charge

(d) Magnetic field

I had been asked this question in an internship interview.

My question is from Faraday’s Law of Induction topic in division Electromagnetic Induction of Physics – Class 12

Answer 1

Right answer is (b) Energy

The explanation: Faraday’s laws are result of the conservation of energy. These laws are based on the conversion of electrical energy into mechanical energy. Mechanical energy can be converted into electrical energy such as in the example of a dynamo. In the same way, electrical energy can be converted into mechanical energy such as in the example of electric motor. Both of the above examples work on the principle of Faraday’s law.