Welcome to the Science Quiz 193

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

Which of the following is a vector quantity?

Magnetic potential

Flux density

Relative permeability

Magnetic field intensity

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!

Temporary magnets are used in?

Loud-speakers

Generators

Motors

All of the above

Correct! Wrong!

A magnetic field exists around?

Copper

Aluminium

Moving charges

None

Correct! Wrong!

Which of the following is not a unit of flux?

Telsa

Maxwell

Weber

NSone

Correct! Wrong!

Magnetism of a magnet can be destroyed by?

Heating

Hammering

By inductive action of another magnet

By all above methods

Correct! Wrong!

One maxwell is equal to?

1000 webers

10 webers

100 webers

None

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!

Science Quiz 193

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Welcome to the Science Quiz 193

Which of the following is a vector quantity?

When an iron piece is placed in a magnetic field?

Temporary magnets are used in?

A magnetic field exists around?

Which of the following is not a unit of flux?

Magnetism of a magnet can be destroyed by?

One maxwell is equal to?

Strength of an electromagnet can be increased by?

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