Question

- A copper sphere having a volume of 990 cm is melted and recast in the form of a wire of length 140
cm. The specific resistivity of copper is
162 * 10 Um
What is the resistance of this wire?
(A) 16 x 10-22
(B) 3.2 * 10:22
(C) 4.8 10-2
(D) 6.4 x 10-22
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Answer 1

Answer:

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