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

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

Question # 2

By winding the coil around a less magnetic core, self induction.

Question # 3

The mutual inductance between two coils depends upon their

Question # 4

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

Question # 5

The motional emf developed in a conduction depends upon.

Question # 6

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

Question # 7

Output of D.C. motor is

Question # 8

The application of mutual induction is a.

Question # 9

Transformer is used to change

Question # 10

The working principle of transformer is.

Question # 11

For inducing emf in a coil the basic requirement is that:

Question # 12

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

Question # 13

When back emf in motor is zero, it draws.

Question # 14

The winding of the electromagnet in motor are usually called.

Question # 15

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

Question # 16

Which one is not present in A.C. generator.

Question # 17

A.C. Generator based upon the

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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 The only difference between the construction of D.C and A.C is.
A. Carbon burshes
B. Coil
C. Commutator
D. Magnetic field
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 Energy density of an inductor is:
A. UM=1/2μ/B2
B. Um = 2μ/B
C. UM = 1/2B2
D. Um = 2B2
4 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
5 The Direction of induced current is always so as to oppose the change which causes the current, is:
A. Faraday's law
B. Lenz's law
C. Ohm's law
D. Kirchhoff' s1ast rule
6 When the back emf is zero, its draws.
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current
7 Energy stored in inductor is.
A. 1/2 L I2
B. 1/2 LI
C. 1/2 L2I
D. 1/2 L2I2
8 The induced emf in a coil is proportional to:
A. Magnetic flux through the coil
B. Rate of change of Magnetic flux through the coil
C. Area of the coil
D. Product of magnetic flux flux and area of the coil
9 The movement of conductor in magnetic field produces electrical current was discovered in:
A. 1931
B. 1731
C. 1842
D. 1831
10 split rings are used in
A. A.C. generator
B. A.C. motor
C. Transformer
D. D.C. motor

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  • sania  saeed

    sania saeed

    16 Nov 2017

    ye log poore number nai dete jan bhooj kar

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  • ayesha

    ayesha

    11 May 2017

    2 mcqs k ans ghalat hain irrespective k wo book ki statements hain

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