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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Physics ICS Part 2 Chapter 15 Online MCQ's Test

00:00
Question # 1

A current generator device converts:

Question # 2

A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is.

Question # 3

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

Question # 4

In case of inductor , energy is stored in the

Question # 5

In self induction A coil is connected in__________ with battery and a rheostat.

Question # 6

When motor is just started, back emf is almost.

Question # 7

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

Question # 8

Step up transfer has a transformation ratio of 3:2. What is the voltage in secondary , If voltage in primary is 30 V?

Question # 9

Which of the following converts electrical energy into mechanical energy.

Question # 10

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

Question # 11

Electromagnetic induction obeys law of conservation

Question # 12

In A.C. inductor behaves as

Question # 13

Electromagnetic induction is exactly according to law of:

Question # 14

When a coil is moved in a uniform magnetic field, an induced emf is produced due of change in

Question # 15

The illustration of the phenomenon of mutual induction is in the device of

Question # 16

Unit of self inductance is

Question # 17

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

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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 only difference between the construction of D.C and A.C is.
A. Carbon burshes
B. Coil
C. Commutator
D. Magnetic field
2 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
3 The unit of induced emf is
A. Ampere
B. Volt
C. Joule/coulomb
D. Both (b) and (c)
4 SI unit of hennery which is.
A. VSA-1
B. VS-1 A
C. VS-1A-1
D. VSA
5 When back emf in motor is zero, it draws.
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current
6 If 10 A current passes through 100 mH inductor, then energy stored is.
A. 100 J
B. 5 J
C. 20 J
D. Zero
7 Which of the following converts electrical energy into mechanical energy.
A. Transformer
B. A.C. generator
C. D.C. generator
D. D.C. motor
8 Michael Faraday and Joseph Henry belongs to
A. England and USA
B. France and USA
C. China and USA
D. None of these
9 Energy density in an inductor is.
A. Directly proportional to magnetic field
B. Directly proportional to square of magnetic field
C. Inversely proportional to magnetic field
D. Inversely proportional to square of magnetic field
10 The motional emf developed in a conduction depends upon.
A. Length
B. Orientation
C. Magnetic field
D. All of the above

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