ECAT Pre Computer Science Chapter 15 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 15 Electromagnetic Induction

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

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ECAT Physics Chapter 15 Electromagnetic Induction

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Question # 1

The induced current in the loop can be increased by:

Question # 2

Split rings act as

Question # 3

When a conductoris moved across a magnetic field:

Question # 4

Which of the following is most suitable as the core of transformer

Question # 5

The product of induced current and the resistance of the wire through which the current is passing is called:

Question # 6

Self inducede e.m.f. is also called

Question # 7

An induced current can be produced by:

Question # 8

The Phenomenon of generation of induced emf is called

Question # 9

A metal road of length 1m is moving at a speed of 1 ms-1In a direction making angle of 30º with 0.5 Y magnetic field. The emf produced in the rod is:

Question # 10

The work is stored in the inductor as

Question # 11

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

Question # 12

An emf is set up in a conductor when it

Question # 13

The motional e.m.f depends upon the

Question # 14

The change of magnetic flux through a circuit will produce

Question # 15

The rate change of area expressed is expressed in:

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1

An induced current can be produced by:

A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic field
D. Constant electric field
2
The magnitude of induced emf depends upon the:
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
3 When there is no relative motion between the magnet and coil, the galvanometer indicated
A. No current in the circuit
B. An increasing current
C. A decreasing current
D. A constant current
4 The rate change of area expressed is expressed in:
A. None of these
B. ms-1
C. m2s-2
D. ms-2
5 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
6 An emf is set up in a conductor when it:
A. Is kept in a magnetic field
B. Is kept in an electric field
C. Moves across a magnetic field
D. Both A and B
7 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
8 Which of the following is most suitable as the core of transformer
A. Soft iron
B. Alinco
C. Steel
D. None of these
9 The change of magnetic flux through a circuit will produce
A. Magnetic Field
B. Electric Field
C. emf
D. a.c
10 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

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