2nd Year Physics Chapter 15 Online MCQ Test for 12th Class Physics Chapter 15 (Electromagnetic Induction)

ICS Part 2 Physics
Chapter 15 Test

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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 15 Online MCQ's Test"

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Physics ICS Part 2 Chapter 15 Online MCQ's Test

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Question # 1

In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.

Question # 2

When a conductor moves across a magnetic field an emf is set up this emf is called.

Question # 3

Unit of self inductance is

Question # 4

When the back emf in a current is zero, it draws

Question # 5

In self induction A coil is connected in__________ with battery and a rheostat.

Question # 6

1 Henry =

Question # 7

For inducing emf in a coil the basic requirement is that:

Question # 8

A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is.

Question # 9

The direction of induced current is always so as to oppose the change which causes the current, this is the statement of

Question # 10

The current induced can be increased by:

Question # 11

If the north pole of a magnet moves away from a metallic ring

Question # 12

The only difference between the construction of D.C and A.C is.

Question # 13

Induced emf in A.C. generator can be increased by

Question # 14

Output of D.C. motor is

Question # 15

Energy stored in an inductor is:

Question # 16

If speed of rotation of a generator is doubled the output voltage will be.

Question # 17

Electric current produces magnetic field, was suggested by.

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ICS 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 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
2 Electric current produces magnetic field, was suggested by.
A. Faraday
B. Oersted
C. Henry
D. Lenz
3 The motional emf is give by
A. qvB
B. IBL
C. eBL
D. vBL
4 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
5 One henry is equal to
A. 1 ohm x 1 sec
B. 1 ohm x 1 hertz
C. 1 ohm x 1 metre
D. All of above
6 Induced emf in A.C. generator can be increased by
A. Decreasing area of coil
B. Decreasing magnetic field
C. Increasing area of coil
D. Slowing down speed of coil
7 Which of the following quantities remain constant in step up transformer?
A. Current
B. Voltage
C. Power
D. Heat
8 The winding of the electromagnet in motor are usually called.
A. Magnetic coils
B. Field coils
C. Electric coils
D. electric o electric coils
9 The magnitude of back emf:
A. Increases with sped of motor
B. Decreases with speed of motor
C. Remains same 
D. None of above
10 The Lenz's law fulfils.
A. Law of conservation of energy
B. Law of conservation of charge
C. Law of conservation of momentum
D. Kirchhoff's law

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