Physics, asked by dhruvranaa, 8 months ago

the resistivity of a metal wirw is 9 into 10 to the power -10 ohm meter. find the resitence if l=2m and area of crosssection is 7mm

Answers

Answered by chethakbs
1

Answer:ans is 2.571 x 10-4 ohm

Explanation:this may help you

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Answered by joyalbijujose
0

Answer:

2.57x10¹⁰

Explanation:

r=ρ×l/a

resistivity(ρ)=9×10¹⁰

a=7mm

l=2m

r=9x10¹⁰x2/7

=2.57x10¹⁰

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