Question

1) State Joule's law of heating and list two special characteristics of a heating element wire
21 An electronic iron consumed energy at the rate of 880 W when heating is at the maximum
and 440 W when the heating is at the minimum rate. The applied voltage is 220 V. Calculat
current and resistance in each case.
3) Copper and aluminium wires are usually employed for electricity transmission. Why?

answer fasr​

Answer 1

Answer:

pls see the attachment