The material that allow electric current to pass through them easily are called

The diodes which glow when current pass through them are called

…………… proposed that all living beings contained electricity.

The metallic rods or plates used in electrolysis are called

The substance used for electrolysis is called

The colour of copper sulphate solution is

Which among these is good conductor of electricity?

Which among these is bad conductor of electricity?

…………. converts chemical energy into electrical energy.

Magnetic compass acts as tester when it is connected in a circuit due to ……………. effect of current.