Question

Explain the following:
(a)
Why is the series arrangements not used for domestic circuits ?
b)
How does the resistance of a wire vary with its area of cross section?
c)
Why are copper and aluminium wires usually employed for electricity transmission ?​

Answer 1

Answer:

and of a is given .

b)R is inversely proportional to it's area of cross section.

c)Alluminium and copper wires have less resistance .

Answer 2

Answer:

see that attached document.