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Magnetism and Electromagnetism

Magnetism and Electromagnetism
A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be

BLI
None of the listed here
BLI2
Zero

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Magnetism and Electromagnetism
The voltage induced across a certain coil is 200 mV. A 120 resistor is connected to the coil terminals. The induced current is

12 mA
16 mA
120 mA
1.7 mA

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Magnetism and Electromagnetism
Temporary magnets are used in

Loud speakers
All of the listed here
Motors
Generators

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Magnetism and Electromagnetism
The unit for reluctance is

Wb
At/m
tesla
At/Wb

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Magnetism and Electromagnetism
Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials.

None of the listed here
triangular
circular
rectangular

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Magnetism and Electromagnetism
In the left hand rule, forefinger always represents

direction of force on the conductor
magnetic field
Voltage
current

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MORE MCQ ON Magnetism and Electromagnetism

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