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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The ratio of intensity of magnetisation to the magnetisation force is known as

Susceptibility
None of the listed here
Flux density
Relatice permeability

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Magnetism and Electromagnetism
Unit for quantity of electricity is

Joule
Ampere-hour
Coulomb
Ampere

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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
1.7 mA
120 mA
16 mA

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Magnetism and Electromagnetism
Materials subjected to rapid reversal of magnetism should have

High co-ercivity and high retentivity
Large area of B-H loop
High co-ercivity and low density
High permeability and low hysteresis loss

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Magnetism and Electromagnetism
The susceptibility of paramagnetic materials generally lies between

1CT3 and 1CT7
KT4 and KT8
10"2 and KT5
KT3 and 1CT6

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

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

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MORE MCQ ON Magnetism and Electromagnetism

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