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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 induced current in the loop can be increased by:
Question # 2
In a coil current change from 2 to 4 A in .05 s. If the average induced emf is 8V then coefficient of self-inductance is:
Question # 3
The device in which induced emf is statically induced emf is:
Question # 4
An emf is set up in a conductor when it:
Question # 5
The motional e.m.f depends upon the
Question # 6
The current produced by moving a loop of wire across a magnetic field is called:
Question # 7
The work is stored in the inductor as
Question # 8
Faraday's law of electromagnetic induction has been used in the construction of:
Question # 9
Referring to above figure, current in the coil P grows from zero to its maximum value:
Question # 10
A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when
Question # 11
The induced current in the loop can be Increased by
Question # 12
Which of the following is most suitable as the core of transformer
Question # 13
Which of the following quantities remain constant in step up transformer?
Question # 14
Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current
Question # 15
When a conductor moved with its length parallel to the lines of magnetic fled:
Top Scorers Of ECAT Physics Chapter 15 Electromagnetic Induction MCQ`s Test
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H Heer 28 - Dec - 2023 00 Min 43 Sec 60/60 -
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R Rabbia Munir 05 - Mar - 2024 02 Min 41 Sec 55/60 -
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A ahtisham *#*# 04 - Mar - 2024 04 Min 23 Sec 55/60 -
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M MUHAMMAD SHAHMEER KHAN 09 - Aug - 2024 05 Min 00 Sec 45/60 -
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S Syed aazan hussain 30 - Jul - 2023 08 Min 21 Sec 40/60 -
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M mehboob ali 21 - Jul - 2024 04 Min 50 Sec 35/60
ECAT Physics Chapter 15 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
C. Relative motion of the loop and magnet
D. Any one of above
|
| 2 |
The magnitude of induced emf depends upon the: |
A. Rate of decrease of magnetic field
B. Rate of change of magnetic field
C. Rate of increase of magnetic flux
D. Constancy of magnetic field
|
| 3 | 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
|
| 4 | The phenomenon of generation of induced emf is called |
A. Electrostatic induction
B. Magnetic induction
C. Electromagnetic induction
D. Electric induction
|
| 5 |
A metal road of length 1m is moving at a speed of 1 ms-1In a direction making angle of 30º with 0.5 Y magnetic field. The emf produced in the rod is: |
A. 0.25 N
B. 0.25 V
C. 2.5 V
D. 2.5 N
|
| 6 | The induced current is 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)
|
| 7 | In a coil current change from 2 to 4 A in .05 s. If the average induced emf is 8V then coefficient of self-inductance is: |
A. 0.2 henry
B. 0.1 henry
C. 0.8 henry
D. 0.04 henry
|
| 8 | 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
|
| 9 | Which of the following is most suitable as the core of transformer |
A. Soft iron
B. Alinco
C. Steel
D. None of these
|
| 10 | 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
|
Test Questions