which non metals are used for making electrodes in dry cells and electric arcs?
Carbon is the non-metal which is used for making electrodes in cell and electric arcs.
Give reason why:
(a) Copper metal is used for making electric wires.
(b) Graphite is used for making the electrode in a dry cell.
Why is graphite used for making electrodes in a dry cell?
Give reason why :
(a) copper metal is used for making electric wires.
(b) graphite is used for making electrode in a cell.
(c) immersion rods for heating liquids are made of metallic substances.