The elements of electrical heating devices are usually made of:

(i) Calculate the current through a lamp of 25 W operating at 250 V. (ii) Why elements of electrical heating devices are made up of alloys?

(i) Calculate the current through a lamp of 25 W operating at 250 V. (ii) Why elements of electrical heating devices are made up of alloys?

Why element of electrical heating devices are made up of alloys ?

i] Heating elements of electrical heating devices is made up of an alloy rather than a pure metal. Give two reasons. ii] Four resistors of 2Omega each are joined end to end to form a square. Calculate the equivalent resistance of the combination between two adjacent corners?

Electrical switches and plugs are usually made up of

The 'element' of an electric iron is made of

Name the alloy which is used to make the heating elements of electrical heating appliances like an electric iron.