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Electromagnetic Induction - Set 1

Home
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NUST Entrance Test
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Physics
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Electromagnetic Induction

Set 1

MM

Mashaal Masha

Oct 15, 2022

On this page

$The current produced by moving a loop of wire across a magnetic field is called:$
$An emf is set up in a conductor when it:$
$An induced current can be produced by:$
$The phenomemon of generation of induced emf is called:$
$The induced current in a conductor depends upon:$
$The induced current in the loop can be increased by:$
$In magnetic coil experiment, emf can be produced by:$
$The magnitude of induced emf depends upon the:$
$When there is no relative motion between the magnet and coil, the galvanometer indicates:$
$Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current:$

Choose the correct options for the following questions.

The current produced by moving a loop of wire across a magnetic field is called:

Difficulty: Easy

A:

Direct current

B:

Magnetic current

C:

Alternating current

D:

Induced current

An emf is set up in a conductor when it:

Difficulty: Easy

A:

Is kept in a magnetic field

B:

Is kept in an electric field

C:

The induced current in a conductor depends upon:

D:

None

An induced current can be produced by:

Difficulty: Easy

A:

Constant magnetic field

B:

Changing magnetic field

C:

Varying electric field

D:

Constant electric field

The phenomemon of generation of induced emf is called:

Difficulty: Easy

A:

Electrostatic induction

B:

Magnetic induction

C:

Electromagnetic induction

D:

Electric induction

The induced current in a conductor depends upon:

Difficulty: Easy

A:

Resistance of the loop

B:

Speed with which the conductor moves

C:

Any of these

D:

Both a and b

The induced current in the loop can be increased by:

Difficulty: Easy

A:

Using a stronger magnetic field

B:

Moving the loop faster

C:

Replacing the loop by a coil of many turns

D:

All

In magnetic coil experiment, emf can be produced by:

Difficulty: Easy

A:

Keeping the coil stationary and moving the magnet

B:

Keeping the magnet stationary and moving the coil

C:

Relative motion of the loop and magnet

D:

All

The magnitude of induced emf depends upon the:

Difficulty: Easy

A:

Rate of decrease of magnetic field

B:

Rate of change of magnetic field

C:

Rate of increase of magnetic flux

D:

Constancy of magnetic field

When there is no relative motion between the magnet and coil, the galvanometer indicates:

Difficulty: Easy

A:

No current in the circuit

B:

An increasing current

C:

A decreasing current

D:

A constant current

Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current:

Difficulty: Easy

A:

Of same magnitude in the same direction

B:

Of different magnitude in the same direction

C:

Of same magnitude but in the opposite direction

D:

Of different magnitude in the opposite direction