Substances that do not conduct electricity are called (a)   .

A cation has (a)   charge.

Some liquids are (a)   conductors of electricity and some are poor conductors of electricity.

Distilled water is an (a)   .

Distilled water when mixed with salts becomes a (a)   conductor of electricity.

Light emitting diodes (LED) glow even when a (a)   electric current flows through it.

The passage of an electric current through a conducting solution causes (a)   .

Change in colour is an example of the (a)   effect of current.

There are (a)   wires attached to an LED.

In an LED, the longer lead is attached to the (a)   terminal of the battery and the shorter lead to the negative terminal.

Distilled water is made by removing all (a)   .