Question 1

The induced current in a circuit can be increased by

Accepted Answer

all of the above

Answer

moving loop faster

Answer

replacing the loop by a coil of many turns

Answer

using strong magnetic field

Question 2

emf is induced due to change in

Accepted Answer

magnetic flux

Answer

current

Answer

charge

Answer

electric flux

Question 3

Identify the phenomenon by which induced emf can be generated

Accepted Answer

All of them

Answer

By moving magnet

Answer

by rotating a coil in it

Answer

by moving a coil towards a stationary magnet

Question 4

If we increase the resistance of the circuit containing the coil, the emf induced will be

Accepted Answer

reduced

Answer

same

Answer

none

Answer

increased

Question 5

The direction of induced current is always so as to oppose the change which causes the current is called:

Accepted Answer

Lenz's Law

Answer

mutual induction

Answer

Faraday's law

Answer

none

Question 6

Lenz's law deals with

Accepted Answer

direction of induced current

Answer

resistance

Answer

magnitude of emf

Answer

direction of emf

Question 7

Inductance is measured in

Accepted Answer

Henry

Answer

weber

Answer

volt second

Answer

volt / ampere

Question 8

When a loop of wire is moved across the magnetic field, the current produced in it is called

Accepted Answer

induced current

Answer

alternating current

Answer

photoelectric current

Answer

direct current

Question 9

If velocity of a conductor moving through a magnetic field is zero, the motional emf will be

Accepted Answer

zero

Answer

qBl

Answer

qvB

Answer

-vBL

Question 10

According to Faraday’s law of electromagnetic induction, the induced emf is directly
proportional to:

Accepted Answer

rate of change of magnetic flux

Answer

induced current

Answer

magnetic flux

Answer

none

Related quizzes

Related quizzes