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

Energy stored in an inductor is:

Question # 2

If the north pole of a magnet moves away from a metallic ring

Question # 3

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

Question # 4

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

Question # 5

The  Lenz's law is also statement of:

Question # 6

The magnitude of motional emf is given by

Question # 7

Energy stored in inductor is.

Question # 8

Which of the following converts electrical energy into mechanical energy.

Question # 9

In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.

Question # 10

The magnitude of back emf:

Question # 11

Efficiency of transformer does not affected by

Question # 12

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

Question # 13

Lenz's law was given by Heinrich lenz in:

Question # 14

Lenz's law deals with

Question # 15

EMF is induced due to change in

Question # 16

The only difference between the construction of D.C and A.C is.

Question # 17

Step up transformer is used.

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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 DC generator by william Sturgeon in:
A. 1894
B. 1961
C. 1834
D. 1961
2 What is the co-efficient of mutual inductance, when the magnetic flux changes by 2 x 10-2 Wb, and change in current is 0.01 A?
A. 2 H
B. 3 H
C. 1/2 H
D. Zero
3 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
4 If we make magnetic field stronger the value of induced current is.
A. Decreased
B. Increased
C. Vanishes
D. Remain constant
5 The induction can be increased by winding the wire around a core made of.
A. Copper
B. Silicon
C. Iron
D. Aluminum
6 Electromagnetic induction is exactly according to law of:
A. Momentum
B. Charge
C. Energy
D. Mass
7 The only difference between the construction of D.C and A.C is.
A. Carbon burshes
B. Coil
C. Commutator
D. Magnetic field
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 If 10 A current passes through 100 mH inductor, then energy stored is.
A. 100 J
B. 5 J
C. 20 J
D. Zero
10
Question Image
A. Lenz's law
B. Faraday's law
C. Ampere's law
D. None of these

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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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