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

00:00
Question # 1

Electromagnetic induction obeys law of conservation

Question # 2

For step down transformer

Question # 3

The Direction of induced current is always so as to oppose the change which causes the current, is:

Question # 4

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

Question # 5

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

Question # 6

A.C is converted into D.C by

Question # 7

Energy stored in inductor is.

Question # 8

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

Question # 9

The self induction emf is some times called.

Question # 10

B2/2p is the expression of.

Question # 11

Efficiency of transformer does not affected by

Question # 12

When motor is just started, back emf is almost.

Question # 13

Lenz's law was given by Heinrich lenz in:

Question # 14

Transformer is used to change

Question # 15

The direction of induced current is always so as to oppose the change which causes the current is:

Question # 16

The emf induced by the motion of a conductor across a magnetic field is called:

Question # 17

Which of the following quantities remain constant in step up transformer?

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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 Electromagnetic induction obeys law of conservation
A. Charge
B. Energy
C. Momentum
D. Mass
2 The motional emf developed in a conduction depends upon.
A. Length
B. Orientation
C. Magnetic field
D. All of the above
3 The mutual inductance of the coils depends upon.
A. Stiffness of the coils
B. Density of coils
C. Material of coils
D. Geometry of the coils
4 The self induction emf is some times called.
A. Motional emf
B. Constant emf
C. Back emf
D. Variable emf
5 If the coil is wound on iron core, the flux through it.
A. Decreases
B. Becomes zero
C. Increases
D. Remains constant
6 The induced emf in a coil is proportional to:
A. Magnetic flux through the coil
B. Rate of change of Magnetic flux through the coil
C. Area of the coil
D. Product of magnetic flux flux and area of the coil
7 Self inductance of a long solenoid is given by
D. None of the above
8
Question Image
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 Lenz's law is a consequence of the law of conservation of
A. Charge
B. Momentum
C. Energy
D. Angular momentum

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  • sania  saeed

    sania saeed

    16 Nov 2017

    ye log poore number nai dete jan bhooj kar

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  • ayesha

    ayesha

    11 May 2017

    2 mcqs k ans ghalat hain irrespective k wo book ki statements hain

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