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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Physics ICS Part 2 Chapter 15 Online MCQ's Test

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Question # 1

Unit of self inductance is

Question # 2

the core of transformer is laminated so reduce.

Question # 3

Lenz's law presented in

Question # 4

When a coil is moved in a uniform magnetic field, an induced emf is produced due of change in

Question # 5

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

Question # 6

The mutual inductance between two coils depends upon their

Question # 7

Energy density in an inductor is.

Question # 8

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

Question # 9

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 # 10

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

Question # 11

A.C. Generator based upon the

Question # 12

If D.C. input for step up transformer, the output is

Question # 13

Electromagnetic induction is exactly according to law of:

Question # 14

The current induced can be increased by:

Question # 15

The Lenz's law fulfils.

Question # 16

The jerks in D.C. motor are created by the use of.

Question # 17

The negative sign with induced emf in Faraday's law is in accordance with

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ICS Part 2 Physics Chapter 15 Online Test MCQ's

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FSc Part II Chapter 0 Important MCQ's

Sr.# Question Answer
1 If D.C. input for step up transformer, the output is
A. Zero
B. High
C. Low
D. May be high or low
2 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
3 Which one is not present in A.C. generator.
A. Armature
B. Magnet
C. Slip rings
D. Commutator
4 The illustration of the phenomenon of mutual induction is in the device of
A. Transformer
B. Inductor
C. A.C. Generator
D. Ammeter
5 Self induction does not depend on
A. Number of turns of the coil
B. Area of cross section of the core
C. Nature of material of the core
D. Current through inductor
6 In case of inductor , energy is stored in the
A. Electric field
B. Magnetic field
C. Potential field
D. Gravitational field
7 Transformer is used to change
A. Electric power
B. Magnetic field
C. Alternating voltage
D. Phase of A.C.
8 In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.
A. NwAB
B. 2pi f
C. Maximum
D. Zero
9 Which of the following quantities remain constant in step up transformer?
A. Current
B. Voltage
C. Power
D. Heat
10 Unit of self inductance is
A. Weber
B. Tesla
C. Henry
D. Farad

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