# Answer to Question #11682 in Electric Circuits for divya sharma

Question #11682

A metal wire of resistivity 64x 10-6 ohm cm and length 198cm has resistance of 7 ohm. Calculate its radius.

Expert's answer

R = a * V = a * l / (Pi * r^2)

r = sqrt((a * l / R) / Pi) = sqrt((64x10^-6 *

198 / 7) / 3.14159) = 0.024005 cm

r = sqrt((a * l / R) / Pi) = sqrt((64x10^-6 *

198 / 7) / 3.14159) = 0.024005 cm

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Assignment Expert17.07.12, 14:22You're welcome. We are glad to be helpful.

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divya sharma14.07.12, 16:26tnk you..it helped me a lot!

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