MAGNETISM AND ELECTROMAGNETISM QUIZ

Fleming's left hand rule is used to find

Direction of magnetic field due to current carrying conductor

Direction of force on a current carrying conductor in a magnetic field

Direction of flux in a solenoid

Polarity of a magnetic pole

TRUE ANSWER : ?
YOUR ANSWER : ?

Ferrites are materials.

Diamagnetic

Ferromagnetic

None of the listed here

Paramagnetic

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YOUR ANSWER : ?

In a simple magnetic field the strength of magnet flux

first increases and then decreases till it becomes zero

increases continuously from initial value to final value

is constant and has same value in energy part of the magnetic field

decreases continuously from initial value to final value

TRUE ANSWER : ?
YOUR ANSWER : ?

Reciprocal of permeability is

Reluctivity

Susceptibility

conductance

Permeability

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YOUR ANSWER : ?

The ability of a material to remain magnetized after removal of the magnetizing force is known as

retentivity

reluctance

permeability

hysteresis

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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 10-6 N

22 x 10"8 N

22 x 10"7 N

22 x 10"5 N

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The ratio of intensity of magnetisation to the magnetisation force is known as

None of the listed here

Relatice permeability

Susceptibility

Flux density

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The bar magnet has

None of the listed here

Dipole moment

Monopole moment

Both dipole and monopole moment

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Substances which have permeability less than the permeability of free space are known as

Paramagnetic material

Diamagnetic material

Bipolar

Ferro magnetic material

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The magnetism left in the iron after exciting field has been removed is known as

permeance

susceptance

residual magnetism

reluctance

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