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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
By winding the coil around a less magnetic core, self induction.
Question # 2
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 # 3
A real transformer does not change.
Question # 4
DC generator by william Sturgeon in:
Question # 5
If magnetic field is doubled then magnetic energy density becomes.
Question # 6
When back emf in motor is zero, it draws.
Question # 7
The application of mutual induction is a.
Question # 8
If speed of rotation of a generator is doubled the output voltage will be.
Question # 9
In A.C. inductor behaves as
Question # 10
split rings are used in
Question # 11
B2/2p is the expression of.
Question # 12
The movement of conductor in magnetic field produces electrical current was discovered in:
Question # 13
SI unit of hennery which is.
Question # 14
Self induction does not depend on
Question # 15
If 10 A current passes through 100 mH inductor, then energy stored is.
Question # 16
Lenz's law was given by Heinrich lenz in:
Question # 17
Lenz's law presented 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 | Commutator was invented in |
A. 1834
B. 1820
C. 1840
D. 1835
|
| 2 | 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's 1st rule
|
| 3 | Energy density of an inductor is: |
A. UM=1/2μ∘/B2
B. Um = 2μ∘/B
C. UM = 1/2B2/μ∘
D. Um = 2B2/μ∘
|
| 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 | A simple device that prevents the direction of current from changing is called. |
A. Commutator
B. Rotor
C. Armature
D. Detector
|
| 6 | Eddy current is one cause energy loss in |
A. A.C. generator
B. Transformer
C. D.C. motor
D. D.C. generator
|
| 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 | Self induction does not depend on |
A. Number of turns of the coil
B. Area of cross section of the core
C. Nature of material of the core
D. Current through inductor
|
| 9 | Step up transformer is used. |
A. Step up D.C. voltage
B. Step up A.C. voltage
C. Step up both A.C and D.C.
D. Step up A.C. current
|
| 10 | The induction can be increased by winding the wire around a core made of. |
A. Copper
B. Silicon
C. Iron
D. Aluminum
|
Test Questions