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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
Output of D.C. motor is
Question # 2
A simple device that prevents the direction of current from changing is called.
Question # 3
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 # 4
With the speed of motor, magnitude of back emf
Question # 5
In case of inductor , energy is stored in the
Question # 6
Electromagnetic induction obeys law of conservation
Question # 7
Electric current produces magnetic field, was suggested by.
Question # 8
Efficiency of transformer does not affected by
Question # 9
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 # 10
the core of transformer is laminated so reduce.
Question # 11
Self inductance of a long solenoid is given by
Question # 12
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?
Question # 13
If speed of rotation of a generator is doubled the output voltage will be.
Question # 14
The jerks in D.C. motor are created by the use of.
Question # 15
The unit of induced emf is
Question # 16
Lenz's law deals with
Question # 17
A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field 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 | 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 | If D.C. input for step up transformer, the output is |
A. Zero
B. High
C. Low
D. May be high or low
|
| 3 | The motional emf depends upon the |
A. Length of conductor
B. Speed of conductor
C. Strength of magnet
D. All of these
|
| 4 | B2/2p is the expression of. |
A. Lenz's law
B. Magnetic energy
C. Magnetic energy density
D. Back emf
|
| 5 | 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
|
| 6 | The only difference between the construction of D.C and A.C is. |
A. Carbon burshes
B. Coil
C. Commutator
D. Magnetic field
|
| 7 | The induction can be increased by winding the wire around a core made of. |
A. Copper
B. Silicon
C. Iron
D. Aluminum
|
| 8 | The working principle of transformer is. |
A. Self induction
B. Faraday's law
C. Mutual induction
D. Electromagnetic induction
|
| 9 | When the back emf is zero, its draws. |
A. Zero current
B. Minimum current
C. Maximum current
D. Steady current
|
| 10 | Mutual induction play role in. |
A. Generator
B. D.C. motor
C. Galvanometer
D. Transformer
|
Test Questions