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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
The induced current in a conductor depends upon
Question # 2
An emf is set up in a conductor when it:
Question # 3
The induced current in the loop can be increased by:
Question # 4
Eddy current is produced when:
Question # 5
A.C. can be measure with the help of
Question # 6
When a conductor is moved across a magnetic field, the redistribution of charge sets up:
Question # 7
Lens's law deals with the
Question # 8
Split rings act as
Question # 9
When there is no relative motion between the magnet and coil, the galvanometer indicates:
Question # 10
An induced current can be produced by:
Question # 11
Lenz's law is the consequence of
Question # 12
The law of electromagnetic induction is related to:
Question # 13
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:
Question # 14
Which of the following quantities remain constant in step up transformer?
Question # 15
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:
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 -
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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 | The unit of induced emf is: |
A. Volt
B. Nm/As
C. Joule coul-1
D. Both A and C
|
| 2 | The current produced by moving a loop of wire across a magnetic field is called: |
A. Direct current
B. Magnetic current
C. Alternating current
D. Induced current
|
| 3 | For inducting emf in a coil the basic requirement is that: |
A. Flux should link the coil
B. Change in flux should link the coil
C. Coil should form a closed loop
D. Both B and C are true
|
| 4 |
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
|
| 5 | The work is stored in the inductor as |
A. Electric potential energy
B. Elastic potential energy
C. Magnetic energy
D. Absolute potential energy
|
| 6 |
An
induced current can be produced by: |
A. Constant magnetic field
B. Changing magnetic field
C. Varying magnetic field
D. Constant electric field
|
| 7 | An induced current can be produced by |
A. Constant magnetic field
B. Changing magnetic field
C. Varying electric field
D. Constant electric field
|
| 8 | Michael Faraday and Joseph Henry belong respectively to |
A. USA and England
B. England and France
C. England and USA
D. USA and France
|
| 9 | The SI unit of magnetic induction is |
A. Weber
B. Weber/meter
C. Henry
D. Tesla
|
| 10 | 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
|
Test Questions