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ICS Part 2 Physics
Chapter 15 Test
Start Chapter 15 Test
ICS Part 2 Physics Chapter Wise Test
(English Medium)
MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 15 Online MCQ's Test"
Try The MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 15 Online MCQ's Test"
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Total Questions17
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Time Allowed20
Physics ICS Part 2 Chapter 15 Online MCQ's Test
00:00
Question # 1
Efficiency of transformer does not affected by
Question # 2
Eddy current is produced when:
Question # 3
1 Henry =
Question # 4
Commutator was invented in
Question # 5
Self inductance of a long solenoid is given by
Question # 6
The direction of induced current is always so as to oppose the change which causes the current, this is the statement of
Question # 7
When motor is just started, back emf is almost.
Question # 8
If the north pole of a magnet moves away from a metallic ring
Question # 9
The device in which induced emf is statically induced emf is:
Question # 10
B2/2p is the expression of.
Question # 11
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 # 12
A current generator device converts:
Question # 13
The magnitude of motional emf is given by
Question # 14
Lenz's law presented in
Question # 15
The application of mutual induction is a.
Question # 16
Commutator was invented by:
Question # 17
The Direction of induced current is always so as to oppose the change which causes the current, is:
ICS 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 | Energy stored in inductor is. |
A. 1/2 L I2
B. 1/2 LI
C. 1/2 L2I
D. 1/2 L2I2
|
| 2 | Step up transfer has a transformation ratio of 3:2. What is the voltage in secondary , If voltage in primary is 30 V? |
A. 45 V
B. 15 V
C. 90 V
D. 300 V
|
| 3 | Lenz's law is a consequence of the law of conservation of |
A. Charge
B. Momentum
C. Energy
D. Angular momentum
|
| 4 | The mutual inductance between two coils depends upon their |
A. Size
B. Core material
C. Size, core material and separation
D. Separation
|
| 5 | A simple device that prevents the direction of current from changing is called. |
A. Commutator
B. Rotor
C. Armature
D. Detector
|
| 6 | B2/2p is the expression of. |
A. Lenz's law
B. Magnetic energy
C. Magnetic energy density
D. Back emf
|
| 7 | By winding the coil around a less magnetic core, self induction. |
A. Will increase
B. Will decrease
C. Remain same
D. First increase then decrease
|
| 8 | If speed of rotation of a generator is doubled the output voltage will be. |
A. Remain same
B. Double
C. Four time
D. One half
|
| 9 | The unit of induced emf is |
A. Ampere
B. Volt
C. Joule/coulomb
D. Both (b) and (c)
|
| 10 | With the speed of motor, magnitude of back emf |
A. Remain same
B. Increase
C. Decrease
D. First increases then decreases
|
Test Questions
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