Flow of charged particles constitutes

Obstruction for the flow of current is called

A temporary strong magnet of any required shape

Voltaic cell is called

The magnetic lines of force are like concentric circles around the current carrying wire. The direction of lines of force is given by

A long cylindrical non-conducting tube on which insulated Copper wire is wound closely leaving no space between the turns is called

The modified form of Leclanche cell is called

A primary cell converts

An instrument used to detect current in a circuit

To avoid rusting of iron, it is coated with