Electromagnetic Induction Mcqs

Our collections of Multiple choice questions and answers focuses on study of Electromagnetic Induction in Physics. These questions are chosen from a collection of most authoritative and best reference books on Physics. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Electromagnetic Induction in Physics comprehensively.

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32.
The practical illustration of the phenomenon of mutual induction is

A.C generator

D.C dynamo

Induction coil

Transformer

33.
The self-inductance of a solenoid is increased when a soft iron core is inserted into it. This is because the soft iron core

Decreases the resistance of the solenoid

Reduces the effect of eddy current

Improves the flux linkage between the turns of the coil

Increases the mutual inductance between the solenoid and the core

34.
Transformer works on the principle of

Lenzs law

Faradays law

Mutual induction

Law of conservation of power

35.
Weber is the unit of

Magnetic field intensity

Magnetic induction

Magnetic flux

Self-inductance

36.
When the motor is at its maximum speed then back emf will be

Maximum

Zero

Intermediate values

No back emf

37.
Which of the following uses electric energy and does not convert it into any other form?

Transformer

Motor

D.C generator

A.C generator

38.
Which of the following works on torque on the current carrying conductor placed in magnetic field.

Galvanometer

Ammeter

Voltmeter

All of the above

39.
Which one of the following devices does not function like an electric motor?

Galvanometer

Ammeter

Voltmeter

Transformer

40.
Which one of the following functions like a motor?

Galvanometer

Ammeter

Voltmeter

All of above

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