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MAGNETISM AND CAPACITOR
Set 3
Set 3
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Q14103
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Which is determined by BH curve?
A
The retentiveness of the material
B
The field intensity of the substance
C
The magnetic properties of the material
D
The pulling power of the magnetic material
Q14104
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Which force is required to demagnetise the residual magnetism in the hysteresis loop?
A
Electromotive force
B
Magneto motive force
C
Counter induced emf
D
Coercive force
Q14105
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Which is the example for inductor?
A
Choke
B
Transformer
C
Buzzer
D
Electric bell
Q14106
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Which law states whenever the magnetic flux is linked with a circuit changes an emf is always induced it?
A
Faraday's law of electromagnetic induction
B
Lenz law
C
Fleming left hand rule
D
Corkscrew rule
Q14107
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What is unit of inductance?
A
Weber
B
Henry
C
Ampere turns
D
wb/m<sup>2</sup>
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