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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
00:00
Question # 1
The magnitude of induced emf depends upon the
Question # 2
When a conductor is moved across a magnetic field, the redistribution of charge sets up:
Question # 3
The magnitude of induced emf depends upon the:
Question # 4
Self inducede e.m.f. is also called
Question # 5
Referring to above figure, current in the coil P grows from zero to its maximum value
Question # 6
The rate change of area expressed is expressed in:
Question # 7
Motional emf is called motional:
Question # 8
A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when
Question # 9
The induced current in a conductor depends upon:
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
Referring to above figure, due to change in current in the coil P, the change in magnetic flux:
Question # 12
In magnet-coil experiment, emf can be produced by:
Question # 13
The current produced by moving a loop of wire across a magnetic field is called:
Question # 14
Which of the following is most suitable as the core of transformer
Question # 15
Instead of moving the coil towards a magnet, the magnet is moved towards the coil with the same speed. The galvanometer shows current:
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 -
M Muhammad Sufyan 01 - Jun - 2024 01 Min 51 Sec 55/60 -
F Farzand Shah Farzand Shah 22 - Apr - 2024 01 Min 17 Sec 50/60 -
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M M SUBHAN HAMEED 04 - Jan - 2025 03 Min 59 Sec 40/60 -
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V Viral Edits 29 - May - 2024 05 Min 17 Sec 40/60 -
T Tasmia 17 - May - 2024 06 Min 46 Sec 40/60 -
A Ahmad Inam 21 - Dec - 2024 09 Min 05 Sec 40/60
ECAT Physics Chapter 15 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | An induced current can be produced by: |
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic feild
D. Constant electric field
|
| 2 | 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
|
| 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 | 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 | 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
|
| 6 | A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when |
A. The coil is distorted
B. The coil is rotated
C. The coil is neither distorted nor rotated
D. Both A and B
|
| 7 | In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called: |
A. Motion emf
B. Electrostatic emf
C. Induced emf
D. Both A and B
|
| 8 | 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
|
| 9 | The induced current in the loop can be Increased by |
A. Using a stronger magnetic field
B. Moving the loop faster
C. Replacing the loop by a coil of many turns
D. All above
|
| 10 | The phenomenon of generation of induced emf is called |
A. Electrostatic induction
B. Magnetic induction
C. Electromagnetic induction
D. Electric induction
|
Test Questions