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

When a conductor moves across a magnetic field an emf is set up this emf is called.

Question # 2

The unit of induced emf is

Question # 3

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

Question # 4

For step down transformer

Question # 5

The movement of conductor in magnetic field produces electrical current was discovered in:

Question # 6

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

Question # 7

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

Question # 8

A real transformer does not change.

Question # 9

Mutual induction play role in.

Question # 10

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

Question # 11

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

Question # 12

With the speed of motor, magnitude of back emf

Question # 13

The winding of the electromagnet in motor are usually called.

Question # 14

SI unit of hennery which is.

Question # 15

When the back emf is zero, its draws.

Question # 16

The mutual inductance between two coils depends upon their

Question # 17

Which of the following quantities remain constant in step up transformer?

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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 self induction emf is some times called.
A. Motional emf
B. Constant emf
C. Back emf
D. Variable emf
2 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
3 Unit of self inductance is
A. Weber
B. Tesla
C. Henry
D. Farad
4 Lenz's law presented in
A. 1834
B. 1934
C. 1826
D. 1836
5 The motional emf depends upon the
A. Length of conductor
B. Speed of conductor
C. Strength of magnet
D. All of these
6 Transformer is used to change
A. Electric power
B. Magnetic field
C. Alternating voltage
D. Phase of A.C.
7 Electromagnetic induction obeys law of conservation
A. Charge
B. Energy
C. Momentum
D. Mass
8 Commutator was invented by:
A. William bills
B. William Gates
C. William tells
D. William Sturgeon
9 Lenz's law deals with
A. Magnitude of emf
B. Direction emf
C. Direction of induced current
D. Resistance
10 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.
A. 0.25 N
B. 2.5 N
C. 0.25 V
D. 2.5 V

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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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