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

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

Question # 2

Micheal Faraday and joseph Henry belong respectively to:

Question # 3

An induced current can be produced by:

Question # 4

The practical application of the phenomenon of Mutual induction is

Question # 5

Split rings act as

Question # 6

When the conductor moved across a magnetic field:

Question # 7

The induced current in the loop can be Increased by

Question # 8

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 # 9

An emf is set up in a conductor when it:

Question # 10

A.C. can be measure with the help of

Question # 11

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

Question # 12

The rate change of area expressed is expressed in:

Question # 13

The induced emf in a coil is proportional to:

Question # 14

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

Question # 15

An induced current can be produced by:

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ECAT Physics Chapter 15 Important MCQ's

Sr.# Question Answer
1 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
2 The SI unit of magnetic induction is
A. Weber
B. Weber/meter
C. Henry
D. Tesla
3 Which of the following quantities remain constant in step up transformer?
A. Current
B. Voltage
C. Power
D. Heat
4 The practical application of the phenomenon of Mutual induction is
A. Transformers
B. Generator
C. Motor
D. All of these
5 Split rings act as
A. Vibrator
B. Resistor
C. Motor
D. Commulator
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 The rate change of area expressed is expressed in:
A. None of these
B. ms-1
C. m2s-2
D. ms-2
8 The law of electromagnetic induction is related to:
A. Coulomb
B. Ampere
C. Faraday
D. Lenz
9 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
10 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

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