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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The relative permeability is less than unity is case of

Ferrits
Paramagnetic material
Ferromagnetic material
Diamagnetic material

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Magnetism and Electromagnetism
One telsa is equal to

1 Wb/mm²
1 mWb/m²
1 Wb/m
1 Wb/m²

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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

BLI2
None of the listed here
BLI
Zero

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Magnetism and Electromagnetism
When two ends of a circular uniform wire are joined to the terminals of a battery, the field at the center of the circle

will be zero
will depend on the radius of the circle
will depend on the amount of e.m.f. applied
will be infinite

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Magnetism and Electromagnetism
The most effective and quickest may of making a magnet from soft iron is by

Placing it inside a coil carrying current
Rubbing with another magnet
The use of permanent magnet
Induction

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

Voltage
magnetic field
current
direction of force on the conductor

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MORE MCQ ON Magnetism and Electromagnetism

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