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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
Lenz's law deals with
Question # 2
The direction of induced current is always so as to oppose the change which causes the current, this is the statement of
Question # 3
A step up transformer is used 120 V line to provide 240 V. If primary coil has 100 turns the number of turns is secondary is.
Question # 4
In self induction A coil is connected in__________ with battery and a rheostat.
Question # 5
The jerks in D.C. motor are created by the use of.
Question # 6
Eddy current is one cause energy loss in
Question # 7
What is the co-efficient of mutual inductance, when the magnetic flux changes by 2 x 10-2 Wb, and change in current is 0.01 A?
Question # 8
When a motor is over loaded then the magnitude of back emf.
Question # 9
Energy stored in inductor is.
Question # 10
Commentator was invented by
Question # 11
When motor is just started, back emf is almost.
Question # 12
The rod of unit length is moving at 30 o through a magnetic field of 1 T. If the velocity of rod is 1 m/s, then induced emf in the rod will be given by
Question # 13
The self induction emf is some times called.
Question # 14
A real transformer does not change.
Question # 15
Lenz's law is a consequence of the law of conservation of
Question # 16
The Lenz's law is also statement of:
Question # 17
If speed of rotation of a generator is doubled the output voltage will be.
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 | The mutual inductance between two coils depends upon their |
A. Size
B. Core material
C. Size, core material and separation
D. Separation
|
| 2 | When motor is just started, back emf is almost. |
A. Maximum
B. Zero
C. Minimum
D. Infinite
|
| 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 | For inducing 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
|
| 5 | Unit of self inductance is |
A. Weber
B. Tesla
C. Henry
D. Farad
|
| 6 | The Si unit of Mutual inductance is: |
A. VA-1S-1
B. VAS-1
C. VSA-1
D. ASV-1
|
| 7 | 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: |
A. 0.2 henry
B. 0.1 henry
C. 0.8 henry
D. 0.04 henry
|
| 8 | Mutual induction play role in. |
A. Generator
B. D.C. motor
C. Galvanometer
D. Transformer
|
| 9 | A simple device that prevents the direction of current from changing is called. |
A. Commutator
B. Rotor
C. Armature
D. Detector
|
| 10 | When the back emf is zero, its draws. |
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current
|
Test Questions