2nd Year Physics Chapter 15 Online MCQ Test for 12th Class Physics Chapter 15 (Electromagnetic Induction)

ICS Part 2 Physics
Chapter 15 Test

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

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Physics ICS Part 2 Chapter 15 Online MCQ's Test

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Question # 1

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 # 2

Mutual induction has a practical role in the performance of the.

Question # 3

split rings are used in

Question # 4

The device in which induced emf is statically induced emf is:

Question # 5

If the coil is wound on iron core, the flux through it.

Question # 6

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

Question # 7

1 Henry =

Question # 8

SI unit of hennery which is.

Question # 9

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

Question # 10

Electric current produces magnetic field, was suggested by.

Question # 11

Michael Faraday and Joseph Henry belongs to

Question # 12

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

Question # 13

The magnitude of back emf:

Question # 14

Energy stored in an inductor is:

Question # 15

DC generator by william Sturgeon in:

Question # 16

The direction of induced current is always so as to oppose the change which causes the current, this is the statement of

Question # 17

Commutator was invented by:

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ICS 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 Transformer is used to change
A. Electric power
B. Magnetic field
C. Alternating voltage
D. Phase of A.C.
2 Eddy current is produced when:
A. A metal is light in varying magnetic field
B. A metal is kept in steady magnetic field
C. A circular coil is placed in a steady magnetic field
D. A current is passed through a circualr coil
3 The motional emf developed in a conduction depends upon.
A. Length
B. Orientation
C. Magnetic field
D. All of the above
4 The mutual inductance between two coils depends upon their
A. Size
B. Core material
C. Size, core material and separation
D. Separation
5 When a motor is over loaded then the magnitude of back emf.
A. Increases
B. Decreases
C. Remain constant
D. Zero
6 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
7 The induction can be increased by winding the wire around a core made of.
A. Copper
B. Silicon
C. Iron
D. Aluminum
8 Lenz's law presented in
A. 1834
B. 1934
C. 1826
D. 1836
9 The unit of induced emf is
A. Ampere
B. Volt
C. Joule/coulomb
D. Both (b) and (c)
10 Electric current produces magnetic field, was suggested by.
A. Faraday
B. Oersted
C. Henry
D. Lenz

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