ECAT Pre Engineering Physics Chapter 15 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

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Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction

00:00
Question # 1

Motional emf is called motional:

Question # 2

Split rings act as

Question # 3

Referring to above figure, due to change in current in the coil P, the change in magnetic flux

Question # 4

The work is stored in the inductor as

Question # 5

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

Question # 6

Referring to above figure, current in coil P falls from its maximum value to zero:

Question # 7

In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:

Question # 8

When a conductoris moved across a magnetic field:

Question # 9

The device in which induced emf is statically induced emf is:

Question # 10

The phenomenon of generation of induced emf is called:

Question # 11

The change of magnetic flux through a circuit will produce

Question # 12

An emf is set up in a conductor when it

Question # 13

An emf is set up in a conductor when it:

Question # 14

Step up transformer has a transformation ratio of 3:2. What is the voltage in secondary, if voltage in primary is 30V:

Question # 15

In magnet-coil experiment, emf can be produced by

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 The device in which induced emf is statically induced emf is:
A. Transformer
B. AC generator
C. Alternator
D. Dynamo
2 A square loop of wire is moving through a uniform magnetic field. The normal to the loop is oriented parallel to the magnetic field. The emf induced in the loop is:
A. Zero
B. Of smaller magnitude
C. Of larger magnitude
D. Sometimes B, sometimes C
3 The rate change of area expressed is expressed in:
A. None of these
B. ms-1
C. m2s-2
D. ms-2
4 For inducting emf in a coil the basic requirement is that:
A. Flux should link the coil
B. Change in flux should link the coil
C. Coil should form a closed loop
D. Both B and C are true
5 The phenomenon of generation of induced emf is called:
A. Electrostatic induced
B. Magnetic induced
C. Electromagnetic induced
D. Electric induced
6 Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current
A. Of same magnitude in the same direction
B. Of different magnitude in the same direction
C. Of same magnitude but in opposite direction
D. Of different magnitude in the opposite direction
7 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic feild
D. Constant electric field
8 Split rings act as
A. Vibrator
B. Resistor
C. Motor
D. Commulator
9 The current produced by moving a loop of wire across a magnetic field is called
A. Direct current
B. Magnetic current
C. Alternating current
D. Induced current
10 A.C. can be measure with the help of
A. Nuclear effect
B. Magnetic effect
C. Chemical effect
D. Heating effect

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