Question

if the length of a conductor in a circuit is doubled then state the change that will occur in the current.​

Answer 1

Answer:

Prasad sir ko pucho‍♂️

Answer 2

solution

let the initial resistance be R and length be l

concept

Resistance is directly proportional to l².

then ,

$\frac{r2}{r1} = (\frac{l2}{l1} ) {}^{2}$

answer

if the length of a conductor in a circuit is doubled

$\frac{r2}{r1} =( \frac{2l}{l} ) {}^{2}$

$\frac{r2}{r1} = 4$

$r2 = 4r1$

V = I R

I inversely proportional to R

so if resistance increased by 4 times

hence current is reduced by 1/4 times

I hope it helps you

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