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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Gilbert is a unit of

conductance
magnetomotive force
permittivity
electromotive force

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Magnetism and Electromagnetism
The direction of a magnetic field within a magnet is

back to front
from south to north
from north to south
front to back

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Magnetism and Electromagnetism
When a solenoid is activated, the force that moves the plunger is

a permanent magnetic field
varying voltage
a steady current
an electromagnetic field

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Magnetism and Electromagnetism
What is the magnitude and the direction of force per 1.1m length of a pair of conductors of a direct current linecarrying 10 amperes and spaced 100 mm apart ?

22 x 10"5 N
22 x 10-6 N
22 x 10"7 N
22 x 10"8 N

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Magnetism and Electromagnetism
A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will

Increases
Decreases
Remain same
None of the listed here

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Magnetism and Electromagnetism
The unit for permeability is

At/m
At/Wb
Wb/At × m
Wb

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MORE MCQ ON Magnetism and Electromagnetism

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