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

One henry is equal to

Question # 2

What is the co-efficient of mutual inductance, when the magnetic flux changes by 2 x 10-2 Wb, and change in current is 0.01 A?

Question # 3

The Si unit of Mutual inductance is:

Question # 4

If magnetic field is doubled then magnetic energy density becomes.

Question # 5

The self induction emf is some times called.

Question # 6

A real transformer does not change.

Question # 7

Eddy current is produced when:

Question # 8

When the back emf is zero, its draws.

Question # 9

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

Question # 10

The Lenz's law fulfils.

Question # 11

Lenz's law is a consequence of the law of conservation of

Question # 12

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

Question # 13

Output of D.C. motor is

Question # 14

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

Question # 15

Electric current produces magnetic field, was suggested by.

Question # 16

When motor is just started, back emf is almost.

Question # 17

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

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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 DC generator by william Sturgeon in:
A. 1894
B. 1961
C. 1834
D. 1961
2 A.C. Generator based upon the
A. Lenz's law
B. Maxwell's relation
C. Faradays law of electromagnet induction
D. Mutual induction
3 The motional emf developed in a conduction depends upon.
A. Length
B. Orientation
C. Magnetic field
D. All of the above
4 Lenz's law was given by Heinrich lenz in:
A. 1894
B. 1904
C. 1854
D. 1834
5 Transformer is used to change
A. Electric power
B. Magnetic field
C. Alternating voltage
D. Phase of A.C.
6 Eddy current is produced when:
A. A metal is light in varying magnetic field
B. A metal is kept in steady magnetic field
C. A circular coil is placed in a steady magnetic field
D. A current is passed through a circualr coil
7 The north pole of a magnet is brought near a metallic ring. The direction of induced current in the ring will be:
A. Antoclockwise
B. Clockwise
C. First Clockwise and then Antoclockwise
D. First anticlockwise and then Clockwise
8 The illustration of the phenomenon of mutual induction is in the device of
A. Transformer
B. Inductor
C. A.C. Generator
D. Ammeter
9 Output of D.C. motor is
A. A.C. energy
B. Mechanical energy
C. Chemical energy
D. D.C. energy
10 A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is.
A. 0.1 J
B. 10 J
C. 100 J
D. 1000 J

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