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Magnetism and Electromagnetism

Magnetism and Electromagnetism
A magnetic field exists around

Moving Charges
Iron
Aluminium
Copper

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Magnetism and Electromagnetism
Reciprocal of permeability is

Reluctivity
Permeability
conductance
Susceptibility

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Magnetism and Electromagnetism
The force between two long parallel conductors is inversely proportional to

Product of current in two conductors
Current in one conductor
Distance between the conductors
Radius of conductor

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Magnetism and Electromagnetism
What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m?

10 AT
4 AT
8 AT
16 AT

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

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Magnetism and Electromagnetism
An electromagnetic field exists only when there is

an increasing current
voltage
current
decreasing current

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MORE MCQ ON Magnetism and Electromagnetism

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