An electromagnet is a permanent magnet. 

Observe the following diagram and choose the correct alternative.

Fill in the blank by selecting an appropriate word from the given list:

List: Electromagnet, pairs, magnet, strongest, pivoted

_____ is a special magnet where magnetism is produced by the flow of electric current. 

List: Elements, nichrome, right angle, cartridge, permanent, high, open, insulator, magnetic, coil

A steel bar placed in a current carrying coil, changes into a _____ magnet.

Fill in the blank by selecting the appropriate word from the given list.

List: Sieving, evaporation, homogeneous, proportions, electromagnet.

A temporary but very powerful magnet attracts iron filing when electric current is passed through it is called _____.