Question

$\huge {\underline{\pink{Question:-}}}$
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Answer 1

Answer:

length = L

area of cross section. = A

resistance = 4

another wore resistance = ?

another wire length = L/2

cross section. = 2A

==> L + A + 4 = L/2 + 2A + ?

==> 4LA = L+2A+? / 2

==> 4LA = 2LA+? / 2

==> 4LA = LA + ?

==> LA + LA = 4 + ?

==> L^2 A^2 = 4

Another resistance = 4/ L^2 A^2

Answer 2

Answer:

there is no resistance given..

Explanation:

so, plz give the value of resistance..

otherwise you can this formula

,p ( resistivity) = R×A/L

so, this formula helps u to find