The resistance of a copper wire 200 m long is 21 Q. If its thickness (diameter) is 0.44 mm, its specific resistance is around_______________?

Electrical Engineering Mcqs

The resistance of a copper wire 200 m long is 21 Q. If its thickness (diameter) is 0.44 mm, its specific resistance is around_______________?

(A) 1.2 x 10~8 Q-m

(B) 1.4 x 10~8 Q-m

(C) 1.6 x 10″”8 Q-m

(D) 1.8 x 10″8 Q-m

Submitted By: Ali Uppal

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