Question

OR
What is meant by Resistance of a conductor? Name and define its S.I unit. How is the resistance of a
wire affected it?
0 lis length is doubles
00) Its radius is doubled?​

Answer 1

Answer:

Resistance of a conductor means the amount of current resisted by a conductor.

Its S.I unit is ohm .

1) Resistance will get doubled

2) Resistance will be 1/4 of original.

Explanation:

1) R = pl/A

If length is doubled then the resistance will also get doubled as R is directly proportional to the length of wire

2) if radius is doubled then resistance will be 1/4

R = pl/2π(2r)²

R = pl/2π4r²

Answer 2

AnswerThe property of a conductor due to which due to which it opposes the flow of current .

Its SI unit is ohm.

1ohm is defined as if 1A of current flow through a conductor when 1V of potential difference is applied.

Explanation: