Welcome to the Science Quiz 131

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Welcome to the Science Quiz 10 — Science Quiz 131

This is a timed quiz. You will be given 15 seconds per question. Are you ready?

Temporary magnets are used in?

Loud-speakers

Generators

Motors

All of the above

Correct! Wrong!

Strength of an electromagnet can be increased by?

Increasing the cross-sectional area

Increasing the number of turns

Increasing current supply

All above methods

Correct! Wrong!

Which of the following is not a unit of flux?

Telsa

Maxwell

Weber

None

Correct! Wrong!

The ratio of intensity of magnetization to the magnetization force is known as?

Heating

Flux density

Relative permeability

Susceptibility

Correct! Wrong!

A permeable substance is one?

Which is a strong magnet

Through which the magnetic lines of force can pass very easily

Which is a bad conductor

None

Correct! Wrong!

Which of the following is not a unit of flux?

Maxwell

Weber

Tesla

None

Correct! Wrong!

When an iron piece is placed in a magnetic field?

The iron piece will break

The magnetic lines of force will bend away from their usual paths in order to go away from the piece.

The magnetic lines of force will bend away from their usual paths in order to pass through the piece

The magnetic field will not be affected

Correct! Wrong!

Indicate which of the following material does not retain magnetism permanently?

Susceptibility

Hardened steel

Stainless steel

Soft iron

Correct! Wrong!

Science Quiz 131

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Welcome to the Science Quiz 131

Temporary magnets are used in?

Strength of an electromagnet can be increased by?

Which of the following is not a unit of flux?

The ratio of intensity of magnetization to the magnetization force is known as?

A permeable substance is one?

Which of the following is not a unit of flux?

When an iron piece is placed in a magnetic field?

Indicate which of the following material does not retain magnetism permanently?

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