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Magnetism and Electromagnetism

Magnetism and Electromagnetism
Reciprocal of permeability is

Reluctivity
conductance
Susceptibility
Permeability

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Magnetism and Electromagnetism
Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be

100 N
0.01 N
10 N
0.1 N

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Magnetism and Electromagnetism
The Biotsavart's law is a general modification of

Lenz's law
Faraday's laws
Ampere's law
Kirchhoff's law

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Magnetism and Electromagnetism
Magnetic moment is a

scalar quantity
vector quantity
universal constant
pole strength

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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

16 mA
1.7 mA
12 mA
120 mA

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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
The use of permanent magnet
Rubbing with another magnet
Induction

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MORE MCQ ON Magnetism and Electromagnetism

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