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

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Question # 1

An induced current can be produced by:

Question # 2

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

Question # 3

A coil of constant area is placed in a constant magnetic field. An include current is produced in the coil when:

Question # 4

A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when:

Question # 5

An induced current can be produced by

Question # 6

Transformer is used to

Question # 7

The induced current in the loop can be Increased by

Question # 8


The magnitude of induced emf depends upon the:

Question # 9

The induced current in a conductor depends upon:

Question # 10

The magnitude of induced emf depends upon the

Question # 11

The law of electromagnetic induction is related to:

Question # 12

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:

Question # 13

When a conductor moved with its length parallel to the lines of magnetic fled:

Question # 14

The Phenomenon of generation of induced emf is called

Question # 15

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

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:
A. Both A and C
B. Induced emf
C. Both A and B
D. Motion emf
2 When a conductoris moved across a magnetic field:
A. Emf induced its similar to that of a battery
B. Emf induced gives rise to induced current
C. An emf is induced across its ends
D. All are correct
3 When there is no relative motion between the magnet and coil, the galvanometer indicates:
A. No current in circuit
B. An increasing current
C. A decreasing current
D. Either B or C
4 A.C. can be measure with the help of
A. Nuclear effect
B. Magnetic effect
C. Chemical effect
D. Heating effect
5 In a coil current change from 2 to 4 A in .05 s. If the average induced emf is 8V then coefficient of self-inductance is:
A. 0.2 henry
B. 0.1 henry
C. 0.8 henry
D. 0.04 henry
6 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
7 Transformer is used to
A. Increase alternating current
B. Increase d.c voltage
C. Increase & Decrease emf
D. All answers are right
8 The Phenomenon of generation of induced emf is called
A. Electrostatic induction
B. Magnetic induction
C. Electromagnetic induction
D. Electric induction
9 Back emf is produced due to
A. Self induction
B. Mutual induction
C. A.C
D. Lenz's law
10 Which of the following is most suitable as the core of transformer
A. Soft iron
B. Alinco
C. Steel
D. None of these

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