Question

How will the resistance of a wire change if

(I)The length of the wire is doubled.

(ii)The area of cross section of the wire is doubled​

Answer 1

Answer:

resistance will get doubled in ist part

resistance get halved in 2nd part

Explanation:

by the relation R = rho l upon A

where R= resistance

l is lenght of conductor

A is are of crossection

Answer 2

Answer:

1 .the resistance of the wire also get doubled if we double the lenth.

2 the resistance will get halved if we double the cross section area