Second Year Physics Chapter 15 Online MCQ Test for 2nd Year Physics Chapter 15 Electromagnetic Induction Preparation

FSC Part 2 Physics
Chapter 15 Test

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Physics FSC Part 2 Chapter 15 Online MCQ's Test

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Question # 1

If force in the direction of velocity of conductor,  then induced current is directed,

Question # 2

The north pole of a magnet is brought near a metallic ring. The direction of induced current in the ring will be:

Question # 3

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

Question # 4

In D.C. generator, split rings act as.

Question # 5

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

Question # 6

Mutual induction has a practical role in the performance of the.

Question # 7

A step up transformer is used 120 V line to provide 240 V. If primary coil has 100 turns the number of turns is secondary is.

Question # 8

Energy density in an inductor is.

Question # 9

If we make magnetic field stronger the value of induced current is.

Question # 10

In case of inductor , energy is stored in the

Question # 11

The unit of induced emf is

Question # 12

Eddy current is produced when:

Question # 13

In A.C. inductor behaves as

Question # 14

A simple device that prevents the direction of current from changing is called.

Question # 15

Lenz's law was given by Heinrich lenz in:

Question # 16

Self inductance of a long solenoid is given by

Question # 17

Electromagnetic induction is exactly according to law of:

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FSC Part 2 Physics Chapter 15 Online Test MCQ's

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 If the north pole of a magnet moves away from a metallic ring
A. Clockwise
B. Anticlockwise
C. First clockwise and then anticlockwise
D. None of above
2 In A.C. inductor behaves as
A. Capacitor
B. Resistor
C. Commutator
D. Transistor
3 The motional emf depends upon the
A. Length of conductor
B. Speed of conductor
C. Strength of magnet
D. All of these
4 If a step up transformer were 100% efficient the primary and secondary winging's would have the same.
A. Current
B. Power
C. Voltage
D. Direction of winding
5 Self inductance of a long solenoid is given by
D. None of the above
6 Mutual induction play role in.
A. Generator
B. D.C. motor
C. Galvanometer
D. Transformer
7 The  Lenz's law is also statement of:
A. Law of conservation of mass
B. Law of conservation of charge
C. Law of conservation of energy
D. Law of conservation of momentum
8 For step down transformer
A. Ns>Np
B. Np > Ns
C. Ns = Np
D. Ns > > > Np
9 The illustration of the phenomenon of mutual induction is in the device of
A. Transformer
B. Inductor
C. A.C. Generator
D. Ammeter
10 The motional emf developed in a conduction depends upon.
A. Length
B. Orientation
C. Magnetic field
D. All of the above

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