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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 change of magnetic flux through a circuit will produce
Question # 2
The unit of induced emf is:
Question # 3
In magnet-coil experiment, emf can be produced by:
Question # 4
The induced current in the loop can be Increased by
Question # 5
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?
Question # 6
Which of the following quantities remain constant in step up transformer?
Question # 7
When the conductor moved across a magnetic field:
Question # 8
Back emf is produced due to
Question # 9
When there is no relative motion between the magnet and coil, the galvanometer indicates:
Question # 10
The magnitude of induced emf depends upon the:
Question # 11
The induced current in the loop can be increased by:
Question # 12
Michael Faraday and Joseph Henry belong respectively to
Question # 13
The SI unit of magnetic induction is
Question # 14
The direction of induced current is always so as to oppose the cause which produces it. This is
Question # 15
Transformer is used to
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M Muneeb ur Rehman 29 - Jun - 2026 03 Min 35 Sec 56/60 -
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B Bariha Asim 27 - Jun - 2024 04 Min 34 Sec 35/60
ECAT Physics Chapter 15 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The induced emf in a coil is proportional to: |
A. Magnetic flux through a coil
B. Rate of change of magnetic flux through the coil
C. Area of the coil
D. Product of magnetic flux and area of the coil
|
| 2 | 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
|
| 3 | Micheal Faraday and joseph Henry belong respectively to: |
A. USA and England
B. England and France
C. England and USA
D. USA and France
|
| 4 | Referring to above figure, current in the coil P grows from zero to its maximum value: |
A. At the instant the switch is closed
B. At the instant the switch is opened
C. When switch is kept open
D. All of above
|
| 5 | Lens's law deals with the |
A. Magnitude of induced current
B. Magnitude of induced e.m.f
C. Direction of induced e.m.f
D. Direction of induced current
|
| 6 | When a conductor moved with its length parallel to the lines of magnetic fled: |
A. An emf is induced across its ends
B. Emf induced is similar to that of a battery
C. Emf passes through the conductor
D. Both A and B
|
| 7 | 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
|
| 8 | The induced current in a conductor depends upon: |
A. Resistance of the loop
B. Speed with which the conductor moves
C. Any of these
D. Both A and B
|
| 9 | Which of the following quantities remain constant in step up transformer? |
A. Current
B. Voltage
C. Power
D. Heat
|
| 10 | When a conductoris moved across a magnetic field: |
A. Emf induced its similar to that of a battery
B. Emf induced gives rise to induced current
C. An emf is induced across its ends
D. All are correct
|
Test Questions
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