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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 magnitude of induced emf depends upon the:
Question # 2
Step up transformer has a transformation ratio of 3:2. What is the voltage in secondary, if voltage in primary is 30V:
Question # 3
The unit of induced emf is:
Question # 4
An emf is set up in a conductor when it
Question # 5
When there is no relative motion between the magnet and coil, the galvanometer indicated
Question # 6
Which of the following is most suitable as the core of transformer
Question # 7
In the equilibrium state, the potential difference between two ends of the conductor moving across a magnetic field is called:
Question # 8
Lenz's law is the consequence of
Question # 9
The ratio of average e.m.f in the coil tot he time rate of change of current in the same coil is called
Question # 10
A.C. can be measure with the help of
Question # 11
The product of induced current and the resistance of the wire through which the current is passing is called:
Question # 12
When there is no relative motion between the magnet and coil, the galvanometer indicates:
Question # 13
The current produced by moving a loop of wire across a magnetic field is called:
Question # 14
An induced current can be produced by
Question # 15
Referring to above figure, due to change in current in the coil P, the change in magnetic flux
Top Scorers Of ECAT Physics Chapter 15 Electromagnetic Induction MCQ`s Test
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ECAT Physics Chapter 15 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 |
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
|
| 2 | Michael Faraday and Joseph Henry belong respectively to |
A. USA and England
B. England and France
C. England and USA
D. USA and France
|
| 3 | 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
|
| 4 | 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
|
| 5 | The rate change of area expressed is expressed in: |
A. None of these
B. ms-1
C. m2s-2
D. ms-2
|
| 6 | 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
|
| 7 | An emf is set up in a conductor when it: |
A. is kept in a magnetic field
B. is kept in a electric field
C. Move across a magnetic field
D. Both (A) and (B)
|
| 8 | The unit of induced emf is: |
A. Volt
B. Nm/As
C. Joule coul-1
D. Both A and C
|
| 9 | 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
|
| 10 | 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
|
Test Questions
