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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MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 15 Online MCQ's Test"

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Physics FSC Part 2 Chapter 15 Online MCQ's Test

00:00
Question # 1

The induction can be increased by winding the wire around a core made of.

Question # 2

B2/2p is the expression of.

Question # 3

The device in the circuit that consume electrical energy are known as.

Question # 4

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

Question # 5

In a coil current change from 2 to 4 A in .05 s . If the average induced emf is 8 V then coefficient of self-inductance is:

Question # 6

Energy density in an inductor is.

Question # 7

Commutator was invented by:

Question # 8

Electric current produces magnetic field, was suggested by.

Question # 9

When back emf in motor is zero, it draws.

Question # 10

The working principle of transformer is.

Question # 11

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

Question # 12

A metal rod of 1 m is moving at a speed of 1 ms-1 in a direction making an angle 30 o with 0.5 T magnetic field . The emf produced is.

Question # 13

If a step up transformer were 100% efficient the primary and secondary winging's would have the same.

Question # 14

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

Question # 15

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

Question # 16

split rings are used in

Question # 17

Energy density of an inductor is:

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 EMF is induced due to change in
A. Charge
B. Current
C. Magnetic flux
D. Electric field
2 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
3 Lenz's law presented in
A. 1834
B. 1934
C. 1826
D. 1836
4 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
5 If force in the direction of velocity of conductor,  then induced current is directed,
A. Anti clockwise
B. Clock wise
C. At equilibrium
D. None of above
6 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
7 When the back emf in a current is zero, it draws
A. Zero current
B. Maximum current
C. Minimum current
D. Steady average current
8 In case of inductor , energy is stored in the
A. Electric field
B. Magnetic field
C. Potential field
D. Gravitational field
9 The motional emf depends upon the
A. Length of conductor
B. Speed of conductor
C. Strength of magnet
D. All of these
10 If speed of rotation of a generator is doubled the output voltage will be.
A. Remain same
B. Double
C. Four time
D. One half

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