Using electromagnets

Using electromagnets

Multiple Choice

what is the symbol for a light bulb?

• A

• V

• X

Multiple Choice

which type of circuit is used in houses?

• series

• parallel

Multiple Choice

why is a piece of magnetic material placed in between the coils?

• to make it last longer

• to use less charge

• to make it stronger

• to make it neater

Multiple Choice

what is the advantage of using electromagnets?

• they are stronger

• they can be turned off

• the use less energy

• they look better

Multiple Select

which of these will NOT be picked up by an electromagnet in a scrap yard?

• aluminium

• nickel

• iron

• cobalt

• copper

Multiple Select

which of these are need for an electromagnet?

• iron core

• long piece of string

• current

• coils of wire

• wheels