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

Faraday's law of electromagnetic induction has been used in the construction of:

Question # 2

When the conductor moved across a magnetic field:

Question # 3

The Phenomenon of generation of induced emf is called

Question # 4

The motional e.m.f depends upon the

Question # 5

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 # 6

An emf is set up in a conductor when it:

Question # 7

The rate change of area expressed is expressed in:

Question # 8

The induced current in the loop can be Increased by

Question # 9

Self inducede e.m.f. is also called

Question # 10

An induced current can be produced by:

Question # 11

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

Question # 12

When a conductor is moved across a magnetic field, the redistribution of charge sets up:

Question # 13

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

Question # 14

Referring to above figure, a changing current in coil P can be produced:

Question # 15

An induced current can be produced by

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 Lens's law deals with the
A. Magnitude of induced current
B. Magnitude of induced e.m.f
C. Direction of induced e.m.f
D. Direction of induced current
2 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
3 In magnet-coil experiment, emf can be produced by
A. Keeping the coil stationary and moving the magnet
B. Keeping the magnet stationary and moving
C. Relative motion of the loop and magnet
D. Any one of above
4 Lenz's law is the consequence of
A. Mass
B. Energy conservation
C. Momentum conservation
D. Charge
5 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
6 The SI unit of magnetic induction is
A. Weber
B. Weber/meter
C. Henry
D. Tesla
7 The product of induced current and the resistance of the wire through which the current is passing is called:
A. Electromagnetic induction
B. induced emf
C. Induced current
D. Self induced
8 Eddy current is produced when:
A. A metal is kept in varying magnetic field
B. A metal is kept in steady magnetic field
C. A circular coil is placed in a steady magnetic field
D. A current is passed through a circular coil
9 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
10 The induced current in a conductor depends upon:
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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