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

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Question # 1

EMF is induced due to change in

Question # 2

If speed of rotation of a generator is doubled the output voltage will be.

Question # 3

split rings are used in

Question # 4

The magnitude of motional emf is given by

Question # 5

B2/2p is the expression of.

Question # 6

Eddy current is one cause energy loss in

Question # 7

If magnetic field is doubled then magnetic energy density becomes.

Question # 8

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

Question # 9

Commutator was invented by:

Question # 10

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

Question # 11

Lenz's law presented in

Question # 12

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

Question # 13

Self inductance of a long solenoid is given by

Question # 14

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 # 15

Mutual induction play role in.

Question # 16

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

Question # 17

Output of D.C. motor is

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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 mutual inductance between two coils depends upon their
A. Size
B. Core material
C. Size, core material and separation
D. Separation
2 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
3 The winding of the electromagnet in motor are usually called.
A. Magnetic coils
B. Field coils
C. Electric coils
D. electric o electric coils
4 The motional emf is give by
A. qvB
B. IBL
C. eBL
D. vBL
5 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
6 Commutator was invented by:
A. William bills
B. William Gates
C. William tells
D. William Sturgeon
7 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
8 The jerks in D.C. motor are created by the use of.
A. Armature
B. Commutators
C. Split rings
D. Source of emf
9 The induction can be increased by winding the wire around a core made of.
A. Copper
B. Silicon
C. Iron
D. Aluminum
10 Step up transformer is used.
A. Step up D.C. voltage
B. Step up A.C. voltage
C. Step up both A.C and D.C.
D. Step up A.C. current

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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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