Question

If a wire conductor of 12 ohm resistance is doubled in length its resistance becomes

Answer 1

it's become dubble so new resistance is 24ohm

Answer 2

By the formula :

R = p l / a

Resistance is directly proportional to the length .

Hence if length is doubled , then the resistance will also be doubled.

Original resistance = 12 ohm

If length is doubled resistance becomes :

R = 12 ohms × 2 = 24 ohms

ANSWER:

The resistance will be 24 ohms