Mashaal Masha
Mashaal Masha
 Oct 15, 2022
0
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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
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A:
Direct current
B:
Magnetic current
C:
Alternating current
D:
Induced current
An emf is set up in a conductor when it:
Difficulty: Easy
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A:
Is kept in a magnetic field
B:
Is kept in an electric field
C:
Moves across a magnetic field
D:
None
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An induced current can be produced by:
Difficulty: Easy
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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
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A:
Electrostatic induction
B:
Magnetic induction
C:
Electromagnetic induction
D:
Electric induction
The induced current in a conductor depends upon:
Difficulty: Easy
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A:
Resistance of the loop
B:
Speed with which the conductor moves
C:
Any of these
D:
Both a and b
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The induced current in the loop can be increased by:
Difficulty: Easy
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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
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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
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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
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When there is no relative motion between the magnet and coil, the galvanometer indicates:
Difficulty: Easy
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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
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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

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