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MCQ's Test For Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction
Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction
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Total Questions15
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Time Allowed20
Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction
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Question # 1
Which of the following is most suitable as the core of transformer
Question # 2
The direction of induced current is always so as to oppose the cause which produces it. This is
Question # 3
In magnet-coil experiment, emf can be produced by:
Question # 4
Eddy current is produced when:
Question # 5
A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when:
Question # 6
The SI unit of magnetic induction is
Question # 7
A device which converts Electrical energy into mechanical energy is called as
Question # 8
Which of the following quantities remain constant in step up transformer?
Question # 9
The Phenomenon of generation of induced emf is called
Question # 10
The induced current in the loop can be Increased by
Question # 11
Referring to above figure, due to change in current in the coil P, the change in magnetic flux
Question # 12
Referring to above figure, current in the coil P grows from zero to its maximum value
Question # 13
When a conductoris moved across a magnetic field:
Question # 14
Referring to above figure, current in coil P falls from its maximum value to zero:
Question # 15
Michael Faraday and Joseph Henry belong respectively to
Top Scorers Of Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction MCQ`s Test
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M M Umer Arain 29 - Nov - 2024 00 Min 10 Sec 60/60 -
A Abdullah Zubair 04 - Jan - 2025 01 Min 50 Sec 60/60 -
D David Navid 28 - Mar - 2024 02 Min 34 Sec 60/60 -
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A Ahmad Inam 21 - Dec - 2024 09 Min 05 Sec 40/60
ECAT Physics Chapter 15 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Which of the following is most suitable as the core of transformer |
A. Soft iron
B. Alinco
C. Steel
D. None of these
|
| 2 | Motional emf is called motional: |
A. Electromagnetic force and is measured in newtons
B. Electromotive force and is measured in volt
C. Electromotive force and is measured in newtons
D. Electromagnetic force and is measured in volts
|
| 3 | An induced current can be produced by |
A. Constant magnetic field
B. Changing magnetic field
C. Varying electric field
D. Constant electric field
|
| 4 | 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
|
| 5 | 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
|
| 6 |
Plan of a coil makes an angle of 20º with the lines of magnetic field. The angle between B and vector area of plane of coil is: |
A. Also 20º
B. 70º
C. 90º
D. 180º
|
| 7 | 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
|
| 8 | In magnet-coil experiment, emf can be produced by: |
A. Keeping the coil stationary and moving the magnet
B. Keeping the magnet stationary and moving the coil
C. Relative motion of the loop and magnet
D. Any one of above
|
| 9 | In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called: |
A. Both A and C
B. Induced emf
C. Both A and B
D. Motion emf
|
| 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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