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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 in a current is zero, it draws
Question # 2
Commutator was invented in
Question # 3
In D.C. generator, split rings act as.
Question # 4
A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is.
Question # 5
When a coil is moved in a uniform magnetic field, an induced emf is produced due of change in
Question # 6
The illustration of the phenomenon of mutual induction is in the device of
Question # 7
With the speed of motor, magnitude of back emf
Question # 8
If force in the direction of velocity of conductor, then induced current is directed,
Question # 9
Energy stored in inductor is.
Question # 10
If the coil is wound on iron core, the flux through it.
Question # 11
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.
Question # 12
In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.
Question # 13
Lenz's law deals with
Question # 14
The Lenz's law fulfils.
Question # 15
The application of mutual induction is a.
Question # 16
Commutator was invented by:
Question # 17
If the north pole of a magnet moves away from a metallic ring
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 | With the speed of motor, magnitude of back emf |
A. Remain same
B. Increase
C. Decrease
D. First increases then decreases
|
| 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 presented in |
A. 1834
B. 1934
C. 1826
D. 1836
|
| 4 | If magnetic field is doubled then magnetic energy density becomes. |
A. Four times
B. Two times
C. Three times
D. Six times
|
| 5 | The winding of the electromagnet in motor are usually called. |
A. Magnetic coils
B. Field coils
C. Electric coils
D. electric o electric coils
|
| 6 | Eddy current is produced when: |
A. A metal is light in varying magnetic field
B. A metal is kept in steady magnetic field
C. A circular coil is placed in a steady magnetic field
D. A current is passed through a circualr coil
|
| 7 | One henry is equal to |
A. 1 ohm x 1 sec
B. 1 ohm x 1 hertz
C. 1 ohm x 1 metre
D. All of above
|
| 8 | The induced emf in a coil is proportional to: |
A. Magnetic flux through the coil
B. Rate of change of Magnetic flux through the coil
C. Area of the coil
D. Product of magnetic flux flux and area of the coil
|
| 9 | A.C. Generator based upon the |
A. Lenz's law
B. Maxwell's relation
C. Faradays law of electromagnet induction
D. Mutual induction
|
| 10 | DC generator by william Sturgeon in: |
A. 1894
B. 1961
C. 1834
D. 1961
|
Test Questions