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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
When the back emf is zero, its draws.
Question # 2
If 10 A current passes through 100 mH inductor, then energy stored is.
Question # 3
SI unit of hennery which is.
Question # 4
Michael Faraday and Joseph Henry belongs to
Question # 5
When a coil is moved in a uniform magnetic field, an induced emf is produced due of change in
Question # 6
A.C. Generator based upon the
Question # 7
The induced emf in a coil is proportional to:
Question # 8
A real transformer does not change.
Question # 9
A simple device that prevents the direction of current from changing is called.
Question # 10
Eddy current is produced when:
Question # 11
Lenz's law is a consequence of the law of conservation of
Question # 12
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 # 13
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 # 14
The working principle of transformer is.
Question # 15
The direction of induced current is always so as to oppose the change which causes the current is:
Question # 16
When back emf in motor is zero, it draws.
Question # 17
The movement of conductor in magnetic field produces electrical current was discovered in:
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 | 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
|
| 2 | The unit of induced emf is |
A. Ampere
B. Volt
C. Joule/coulomb
D. Both (b) and (c)
|
| 3 | The magnitude of back emf: |
A. Increases with sped of motor
B. Decreases with speed of motor
C. Remains same
D. None of above
|
| 4 | The direction of induced current is always so as to oppose the change which causes the current, this is the statement of |
A. Lenz's law
B. Faraday's law
C. Ampere's law
D. Coulomb's law
|
| 5 | The motional emf depends upon the |
A. Length of conductor
B. Speed of conductor
C. Strength of magnet
D. All of these
|
| 6 | Commutator was invented in |
A. 1834
B. 1820
C. 1840
D. 1835
|
| 7 | The motional emf is give by |
A. qvB
B. IBL
C. eBL
D. vBL
|
| 8 | A metal rod of 1 m is moving at a speed of 1 ms-1 in a direction making an angle 30 o with 0.5 T magnetic field . The emf produced is. |
A. 0.25 N
B. 2.5 N
C. 0.25 V
D. 2.5 V
|
| 9 | The negative sign with induced emf in Faraday's law is in accordance with |
A. Lenz's law
B. Amperes law
C. Boyle's law
D. Gauss law
|
| 10 | Lenz's law presented in |
A. 1834
B. 1934
C. 1826
D. 1836
|
Test Questions