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

In magnet-coil experiment, emf can be produced by

Question # 2

Lenz's law is the consequence of

Question # 3

The unit of induced emf is:

Question # 4

The induced current in the loop can be increased by:

Question # 5

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

Question # 6

The magnitude of induced emf depends upon the:

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The ratio of average e.m.f in the coil tot he time rate of change of current in the same coil is called

Question # 11

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 # 12

Micheal Faraday and joseph Henry belong respectively to:

Question # 13

The direction of induced current is always so as to oppose the cause which produces it. This is

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 When the conductor moved across a magnetic field:
A. Emf induced is similar to that of a battery

B. Emf induced gives rise to induced current

C. An emf induced across its ends

D. All are correct
2 The phenomenon of generation of induced emf is called
A. Electrostatic induction
B. Magnetic induction
C. Electromagnetic induction
D. Electric induction
3 Referring to above figure, current in the coil P grows from zero to its maximum value
A. At the instant the switch is closed
B. At the instant the switch is opened
C. When switch is kept open
D. All of above
4 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
5 The law of electromagnetic induction is related to:
A. Coulomb
B. Ampere
C. Faraday
D. Lenz
6 The ratio of average e.m.f in the coil tot he time rate of change of current in the same coil is called
A. Mutual induction
B. Mutual inductance
C. Capacitance
D. Self inductance
7

An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic field
D. Constant electric field
8 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
9 Referring to above figure, current in coil P falls from its maximum value to zero
A. At the instant the switch is closed
B. At the instant the switch is opened
C. When switch is kept open
D. When switch is kept closed
10 An induced current can be produced by:
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic field
D. Constant electric field

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