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MCQ's Test For ECAT Physics Chapter 15 Electromagnetic Induction
Try The MCQ's Test For ECAT Physics Chapter 15 Electromagnetic Induction
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Total Questions15
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Time Allowed20
ECAT Physics Chapter 15 Electromagnetic Induction
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Question # 1
The current produced by moving a loop of wire across a magnetic field is called:
Question # 2
Referring to above figure, a changing current in coil P can be produced:
Question # 3
The work is stored in the inductor as
Question # 4
An induced current can be produced by
Question # 5
An emf is set up in a conductor when it:
Question # 6
The Phenomenon of generation of induced emf is called
Question # 7
The induced emf in a coil is proportional to:
Question # 8
Referring to above figure, current in the coil P grows from zero to its maximum value
Question # 9
The unit of induced emf is:
Question # 10
The practical application of the phenomenon of Mutual induction is
Question # 11
The direction of induced current is always so as to oppose the cause which produces it. This is
Question # 12
Michael Faraday and Joseph Henry belong respectively to
Question # 13
The product of induced current and the resistance of the wire through which the current is passing is called:
Question # 14
The motional e.m.f depends upon the
Question # 15
The change of magnetic flux through a circuit will produce
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ECAT Physics Chapter 15 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | A square loop of wire is moving through a uniform magnetic field. The normal to the loop is oriented parallel to the magnetic field. The emf induced in the loop is: |
A. Zero
B. Of smaller magnitude
C. Of larger magnitude
D. Sometimes B, sometimes C
|
| 2 | The change of magnetic flux through a circuit will produce |
A. Magnetic Field
B. Electric Field
C. emf
D. a.c
|
| 3 | The ratio of average e.m.f in the coil tot he time rate of change of current in the same coil is called |
A. Mutual induction
B. Mutual inductance
C. Capacitance
D. Self inductance
|
| 4 | What is the coefficient of mutual inductance, when the magnetic flux changes by 2 X 10-2Wb, and change in current is 0.01 A? |
A. 2 H
B. 3 H
C. 1/2 H
D. Zero
|
| 5 | The unit of induced emf is: |
A. Volt
B. Nm/As
C. Joule coul-1
D. Both A and C
|
| 6 | Referring to above figure, due to change in current in the coil P, the change in magnetic flux: |
A. Is associated with coil P
B. Is associated with coil S
C. Causes an induced current is coil S
D. All of these
|
| 7 | Referring to above figure, due to change in current in the coil P, the change in magnetic flux |
A. Is associated with coil P
B. Is associated with coil S
C. Causes and induced current in coil S
D. All of these
|
| 8 | When there is no relative motion between the magnet and coil, the galvanometer indicates: |
A. No current in circuit
B. An increasing current
C. A decreasing current
D. Either B or C
|
| 9 | The product of induced current and the resistance of the wire through which the current is passing is called: |
A. Electromagnetic induction
B. induced emf
C. Induced current
D. Self induced
|
| 10 | The device in which induced emf is statically induced emf is: |
A. Transformer
B. AC generator
C. Alternator
D. Dynamo
|
Test Questions
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