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Faraday's Second Law

Two copper wi...

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Two copper wires have their masses in the ratio of 2 : 3 and their lengths in the ratio 3 : 4. What is the ratio of their resis†an ce? (a) 4 : 9 (b) 16 : 81 (c) 27 : 32 (d) 2 :1.

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