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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
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 # 2
Unit of self inductance is
Question # 3
The magnitude of back emf:
Question # 4
Lenz's law deals with
Question # 5
In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.
Question # 6
The illustration of the phenomenon of mutual induction is in the device of
Question # 7
Output of D.C. motor is
Question # 8
A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is.
Question # 9
Which of the following quantities remain constant in step up transformer?
Question # 10
Transformer is used to change
Question # 11
For step down transformer
Question # 12
Eddy current is produced when:
Question # 13
Which one is not present in A.C. generator.
Question # 14
SI unit of hennery which is.
Question # 15
Commentator was invented by
Question # 16
If speed of rotation of a generator is doubled the output voltage will be.
Question # 17
The jerks in D.C. motor are created by the use of.
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 | 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
|
| 2 | When a motor is over loaded then the magnitude of back emf. |
A. Increases
B. Decreases
C. Remain constant
D. Zero
|
| 3 | The north pole of a magnet is brought near a metallic ring. The direction of induced current in the ring will be: |
A. Antoclockwise
B. Clockwise
C. First Clockwise and then Antoclockwise
D. First anticlockwise and then Clockwise
|
| 4 | Mutual induction play role in. |
A. Generator
B. D.C. motor
C. Galvanometer
D. Transformer
|
| 5 | Efficiency of transformer does not affected by |
A. Input voltage
B. Core of transformer
C. Insulation between sheet
D. Resistance of coils
|
| 6 | If 10 A current passes through 100 mH inductor, then energy stored is. |
A. 100 J
B. 5 J
C. 20 J
D. Zero
|
| 7 | Energy stored in an inductor is: |
A. 1/2L2I
B. 1/2L2/I
C. 1/2LI2
D. 1/2LI
|
| 8 | The Direction of induced current is always so as to oppose the change which causes the current, is: |
A. Faraday's law
B. Lenz's law
C. Ohm's law
D. Kirchhoff' s1ast rule
|
| 9 | the core of transformer is laminated so reduce. |
A. Magnetic loss
B. Hysteresis loss
C. Eddy current loss
D. Electric loss
|
| 10 | 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
|
Test Questions
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sania saeed
16 Nov 2017ye log poore number nai dete jan bhooj kar
ayesha
11 May 20172 mcqs k ans ghalat hain irrespective k wo book ki statements hain