Question

how is the resistance of a wire affected if it's length is doubled ?

Answer 1

Answer:resistance will become four times

Explanation:

Answer 2

$\huge\text{\underline{Answer}}$

If the length of wire is doubled then the is increased by four times than previous resistance.

The resistance of wire is depends on following factors :-

1. The resistance of wire is directly proportional to the length of wire.
2. The resistance of wire is inversely proportional to the area of cross section of wire.
3. The resistance is directly proportional to the temperature.
4. The resistance of wire depends on nature of material used.

hence, the resistance of wire is increased four times if we increase the length of wire at two times.