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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
00:00
Question # 1
The magnitude of induced emf depends upon the
Question # 2
The current produced by moving a loop of a wire across a magnetic field is called:
Question # 3
The magnitude of induced emf depends upon the:
Question # 4
Michael Faraday and Joseph Henry belong respectively to
Question # 5
An induced current can be produced by
Question # 6
Split rings act as
Question # 7
Micheal Faraday and joseph Henry belong respectively to:
Question # 8
Lenz's law is the consequence of
Question # 9
An emf is set up in a conductor when it:
Question # 10
The change of magnetic flux through a circuit will produce
Question # 11
The induced emf in a coil is proportional to:
Question # 12
Faraday's law of electromagnetic induction has been used in the construction of:
Question # 13
Step up transformer has a transformation ratio of 3:2. What is the voltage in secondary, if voltage in primary is 30V:
Question # 14
The motional e.m.f depends upon the
Question # 15
The SI unit of magnetic induction is
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ECAT Physics Chapter 15 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | A coil of constant area is placed in a constant magnetic field. An include current is produced in the coil when: |
A. The coil is destroyed
B. The coil is Rotated
C. The coil is neither destroyed nor rotated
D. Both (A) and (B)
|
| 2 | The motional e.m.f depends upon the |
A. Length of a conductor
B. Strength of a magnet
C. Speed of the conductor
D. All of the above
|
| 3 | Step up transformer has a transformation ratio of 3:2. What is the voltage in secondary, if voltage in primary is 30V: |
A. 45 V
B. 15 V
C. 90 V
D. 300 V
|
| 4 | Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current |
A. Of same magnitude in the same direction
B. Of different magnitude in the same direction
C. Of same magnitude but in opposite direction
D. Of different magnitude in the opposite direction
|
| 5 | The phenomenon of generation of induced emf is called |
A. Electrostatic induction
B. Magnetic induction
C. Electromagnetic induction
D. Electric induction
|
| 6 | The direction of induced current is always so as to oppose the cause which produces it. This is |
A. Lenz's law
B. Ampere's law
C. Faraday's law
D. Coulomb's law
|
| 7 | Eddy current is produced when: |
A. A metal is kept 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 circular coil
|
| 8 | An emf is set up in a conductor when it: |
A. Is kept in a magnetic field
B. Is kept in an electric field
C. Moves across a magnetic field
D. Both A and B
|
| 9 | 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
|
| 10 | The phenomenon of generation of induced emf is called: |
A. Electrostatic induced
B. Magnetic induced
C. Electromagnetic induced
D. Electric induced
|
Test Questions
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