Welcome to the Science Quiz 193

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

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 a vector quantity?

Magnetic potential

Flux density

Relative permeability

Magnetic field intensity

Correct! Wrong!

A magnetic field exists around?

Copper

Aluminium

Moving charges

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!

Magnetism of a magnet can be destroyed by?

Heating

Hammering

By inductive action of another magnet

By all above methods

Correct! Wrong!

Which of the following is not a unit of flux?

Telsa

Maxwell

Weber

NSone

Correct! Wrong!

Temporary magnets are used in?

Loud-speakers

Generators

Motors

All of the above

Correct! Wrong!

One maxwell is equal to?

1000 webers

10 webers

100 webers

None

Correct! Wrong!

Science Quiz 193

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Welcome to the Science Quiz 193

Strength of an electromagnet can be increased by?

Which of the following is a vector quantity?

A magnetic field exists around?

When an iron piece is placed in a magnetic field?

Magnetism of a magnet can be destroyed by?

Which of the following is not a unit of flux?

Temporary magnets are used in?

One maxwell is equal to?

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