Question

what is the resistance of a wire of length 300 m area of cross section 1mm^2 and resistivity 1.0x 10^-7 ohm meter​

Answer 1

Answer:

given,

length of the wire L=300m

area of cross section A=1.0mm^2=1x10^-6m

resistivity (rho) =1.0x10^-7

Resistance R=rho (L/A)

R=1.0x10^-7x300/1.0x10^-6

R=300x10^-1

R=30 Ohm

Explanation:

Mark as brainlist if correct

Answer 2

Answer:

It is the correct answer.

Step-by-step explanation:

Hope this attachment helps you.