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

Output of D.C. motor is

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Electric current produces magnetic field, was suggested by.

Question # 6

Electromagnetic induction obeys law of conservation

Question # 7

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

Question # 8

The illustration of the phenomenon of mutual induction is in the device of

Question # 9

The mutual inductance between two coils depends upon their

Question # 10

Lenz's law deals with

Question # 11

When back emf in motor is zero, it draws.

Question # 12

Eddy current is one cause energy loss in

Question # 13

Commutator was invented in

Question # 14

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

Question # 15

A.C. Generator based upon the

Question # 16

Eddy current is produced when:

Question # 17

Step up transformer is used.

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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 motional emf is give by
A. qvB
B. IBL
C. eBL
D. vBL
2 1 Henry =
A. VSA-1
B. VS-1A-1
C. V-1SA
D. VSA-2
3
Question Image
A. Lenz's law
B. Faraday's law
C. Ampere's law
D. None of these
4 In D.C. generator, split rings act as.
A. Capacitor
B. Commutator
C. Resistor
D. Inductor
5 Step up transformer is used.
A. Step up D.C. voltage
B. Step up A.C. voltage
C. Step up both A.C and D.C.
D. Step up A.C. current
6 The only difference between the construction of D.C and A.C is.
A. Carbon burshes
B. Coil
C. Commutator
D. Magnetic field
7 The negative sign with induced emf in Faraday's law is in accordance with
A. Lenz's law
B. Amperes law
C. Boyle's law
D. Gauss law
8 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
9 Commentator was invented by
A. Henry
B. Ousted
C. Maxwell
D. William sturgeon
10 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

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