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

00:00
Question # 1

When motor is just started, back emf is almost.

Question # 2

Energy density in an inductor is.

Question # 3

The self induction emf is some times called.

Question # 4

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

Question # 5

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

Question # 6

The magnitude of motional emf is given by

Question # 7

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

Question # 8

The Lenz's law fulfils.

Question # 9

In a coil current change from 2 to 4 A in .05 s . If the average induced emf is 8 V then coefficient of self-inductance is:

Question # 10

Self induction does not depend on

Question # 11

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

Question # 12

The application of mutual induction is a.

Question # 13

Lenz's law presented in

Question # 14

Commutator was invented 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

B2/2p is the expression of.

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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 The emf induced by the motion of a conductor across a magnetic field is called:
A. Motional emf
B. Rotational emf
C. Induced emf
D. All of above
2 Lenz's law deals with
A. Magnitude of emf
B. Direction emf
C. Direction of induced current
D. Resistance
3 Electric current produces magnetic field, was suggested by.
A. Faraday
B. Oersted
C. Henry
D. Lenz
4 1 Henry =
A. VSA-1
B. VS-1A-1
C. V-1SA
D. VSA-2
5 The unit of induced emf is
A. Ampere
B. Volt
C. Joule/coulomb
D. Both (b) and (c)
6 If force in the direction of velocity of conductor,  then induced current is directed,
A. Anti clockwise
B. Clock wise
C. At equilibrium
D. None of above
7 Commutator was invented in
A. 1834
B. 1820
C. 1840
D. 1835
8 The movement of conductor in magnetic field produces electrical current was discovered in:
A. 1931
B. 1731
C. 1842
D. 1831
9 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
10 The induction can be increased by winding the wire around a core made of.
A. Copper
B. Silicon
C. Iron
D. Aluminum

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