Science Quiz 135

This is a timed quiz. You will be given 120 seconds to answer all questions. Are you ready?

120

Magnetism of a magnet can be destroyed by?

Hammering

By inductive action of another magnet

By all above methods

None

Correct! Wrong!

Ferrites are materials?

Paramagnetic

Diamagnetic

Both (a) & (b)

Ferromagnetic

Correct! Wrong!

If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density?

Doubles

Amplify flux

Increases

Decreases

Correct! Wrong!

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

Reluctance

Hysteresis

Both (A)& (B)

Retentivity

Correct! Wrong!

The induced voltage across a stationary conductor in a stationary magnetic field is ?

Increased

Reversed in polarity

Zero

Decreased

Correct! Wrong!

Materials subjected to rapid reversal of magnetism should have?

High permeability and low hysteresis loss

High coercivity and low density

High coercivity and high retentivity

None

Correct! Wrong!

Ferrites are materials ?

D materials

Paramagnetic materials

Both (A) & (B)

Ferromagnetic

Correct! Wrong!

The relative permeability of materials is not constant?

Paramagnetic material

Ferromagnetic material

Diamagnetic material

None

Correct! Wrong!

Science Quiz 135

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Science Quiz 135

Magnetism of a magnet can be destroyed by?

Ferrites are materials?

If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density?

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

The induced voltage across a stationary conductor in a stationary magnetic field is ?

Materials subjected to rapid reversal of magnetism should have?

Ferrites are materials ?

The relative permeability of materials is not constant?

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Science Quiz 135

Magnetism of a magnet can be destroyed by?

Ferrites are materials?

If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density?

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

The induced voltage across a stationary conductor in a stationary magnetic field is ?

Materials subjected to rapid reversal of magnetism should have?

Ferrites are materials ?

The relative permeability of materials is not constant?

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Purchased - Ravensburger - Cosmic Exploration Puzzle 200pc

Purchased - National Geographic Gemstone Dig Kit