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

DC generator by william Sturgeon in:

Question # 2

Energy stored in inductor is.

Question # 3

When motor is just started, back emf is almost.

Question # 4

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

Question # 5

Lenz's law was given by Heinrich lenz in:

Question # 6

The  Lenz's law is also statement of:

Question # 7

The motional emf is give by

Question # 8

The mutual inductance of the coils depends upon.

Question # 9

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

Question # 10

The rod of unit length is moving at 30 o through a magnetic field of 1 T. If the velocity of rod is 1 m/s, then induced emf in the rod will be given by

Question # 11

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

Question # 12

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

Question # 13

If 10 A current passes through 100 mH inductor, then energy stored is.

Question # 14

One henry is equal to

Question # 15

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

Question # 16

For step down transformer

Question # 17

Commentator was invented by

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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 Electric current produces magnetic field, was suggested by.
A. Faraday
B. Oersted
C. Henry
D. Lenz
2 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
3 B2/2p is the expression of.
A. Lenz's law
B. Magnetic energy
C. Magnetic energy density
D. Back emf
4 Lenz's law presented in
A. 1834
B. 1934
C. 1826
D. 1836
5 Unit of self inductance is
A. Weber
B. Tesla
C. Henry
D. Farad
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 1 Henry =
A. VSA-1
B. VS-1A-1
C. V-1SA
D. VSA-2
8 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
9 Commutator was invented in
A. 1834
B. 1820
C. 1840
D. 1835
10 When the back emf is zero, its draws.
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current

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