A wire of cross-sectional area 0.60mm2 has a restivity of 7.2 x 10-7 \(\Omega\). Calculate the length of wire that will have a resistance of 3\(\Omega\).

a

0.25m

b

2.50m

c

3.60m

d

36.00

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Correct Option
b

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Discussions (5)

Johnny1761
10 months ago

Wrong

Zeebah08jta
1 year ago

I don't understand the explanation

Theoretically
5 years ago

CSA is in mm, so area will be 0.6*10^-9

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