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FSC Part 2 Physics
Chapter 15 Test
Start Chapter 15 Test
FSC Part 2 Physics Chapter Wise Test
(English Medium)
MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 15 Online MCQ's Test"
Try The MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 15 Online MCQ's Test"
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Total Questions17
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Time Allowed20
Physics FSC Part 2 Chapter 15 Online MCQ's Test
00:00
Question # 1
A current generator device converts:
Question # 2
Commentator was invented by
Question # 3
The induction can be increased by winding the wire around a core made of.
Question # 4
The Direction of induced current is always so as to oppose the change which causes the current, is:
Question # 5
If the coil is wound on iron core, the flux through it.
Question # 6
The only difference between the construction of D.C and A.C is.
Question # 7
The direction of induced current is always so as to oppose the change which causes the current, this is the statement of
Question # 8
The movement of conductor in magnetic field produces electrical current was discovered in:
Question # 9
The emf induced by the motion of a conductor across a magnetic field is called:
Question # 10
Transformer is used to change
Question # 11
The negative sign with induced emf in Faraday's law is in accordance with
Question # 12
Efficiency of transformer does not affected by
Question # 13
In a coil current change from 2 to 4 A in .05 s . If the average induced emf is 8 V then coefficient of self-inductance is:
Question # 14
If speed of rotation of a generator is doubled the output voltage will be.
Question # 15
When motor is just started, back emf is almost.
Question # 16
With the speed of motor, magnitude of back emf
Question # 17
When back emf in motor is zero, it draws.
FSC Part 2 Physics Chapter 15 Online Test MCQ's
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FSc Part II Physics Chapter 0 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is. |
A. NwAB
B. 2pi f
C. Maximum
D. Zero
|
| 2 | Electromagnetic induction obeys law of conservation |
A. Charge
B. Energy
C. Momentum
D. Mass
|
| 3 | A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is. |
A. 0.1 J
B. 10 J
C. 100 J
D. 1000 J
|
| 4 | The winding of the electromagnet in motor are usually called. |
A. Magnetic coils
B. Field coils
C. Electric coils
D. electric o electric coils
|
| 5 | The application of mutual induction is a. |
A. D.C. motor
B. Radio
C. Television
D. Transformer
|
| 6 | A real transformer does not change. |
A. Voltage level
B. Current level
C. Power level
D. Frequency
|
| 7 | The unit of induced emf is |
A. Ampere
B. Volt
C. Joule/coulomb
D. Both (b) and (c)
|
| 8 | Mutual induction has a practical role in the performance of the. |
A. Radio choke
B. Transformers
C. A.C. Generator
D. D.C. Generator
|
| 9 | When the back emf is zero, its draws. |
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current
|
| 10 | Lenz's law was given by Heinrich lenz in: |
A. 1894
B. 1904
C. 1854
D. 1834
|
Test Questions