Question

Two wires A and B are of equal length, different cross sectional areas and made of same metal. if the resistance of wire A is four times the resistance of wire B. Calculate:
1) The ratio of the cross sectional areas of the wires.
2) The ratio of the radii of the wire.

Answer 1

Answer:

Explanation:

Hope thse helps u to understand my ans ^_^

Answer 2

Holaaa Mate

Refer to the attachment..