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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
With the speed of motor, magnitude of back emf
Question # 2
1 Henry =
Question # 3
In A.C. generator , when plane of coil is perpendicular to magnetic field, then output of generator is.
Question # 4
A.C. Generator based upon the
Question # 5
When motor is just started, back emf is almost.
Question # 6
A current generator device converts:
Question # 7
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 # 8
Lenz's law is a consequence of the law of conservation of
Question # 9
A simple device that prevents the direction of current from changing is called.
Question # 10
The mutual inductance of the coils depends upon.
Question # 11
The current induced can be increased by:
Question # 12
If speed of rotation of a generator is doubled the output voltage will be.
Question # 13
The working principle of transformer is.
Question # 14
One henry is equal to
Question # 15
If D.C. input for step up transformer, the output is
Question # 16
Lenz's law deals with
Question # 17
The magnitude of back emf:
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 | What is the co-efficient of mutual inductance, when the magnetic flux changes by 2 x 10-2 Wb, and change in current is 0.01 A? |
A. 2 H
B. 3 H
C. 1/2 H
D. Zero
|
| 2 | The emf induced by the motion of a conductor across a magnetic field is called: |
A. Motional emf
B. Rotational emf
C. Induced emf
D. All of above
|
| 3 | Transformer is used to change |
A. Electric power
B. Magnetic field
C. Alternating voltage
D. Phase of A.C.
|
| 4 |
|
A. Lenz's law
B. Faraday's law
C. Ampere's law
D. None of these
|
| 5 | 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 |
A. I V
B. 0.25 V
C. 0.5 V
D. 0.6 V
|
| 6 |
|
|
| 7 | Eddy current is one cause energy loss in |
A. A.C. generator
B. Transformer
C. D.C. motor
D. D.C. generator
|
| 8 | 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
|
| 9 | In A.C. inductor behaves as |
A. Capacitor
B. Resistor
C. Commutator
D. Transistor
|
| 10 | the core of transformer is laminated so reduce. |
A. Magnetic loss
B. Hysteresis loss
C. Eddy current loss
D. Electric loss
|
Test Questions