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8. 90 C of charge passes in one hour and 15 min, inacopper wire of diameter 1 mm. Copper contains 5.8x-3. Find (i) current in the wire (ii)Netach1028 electrons nmdrift velocity of electron in the wire.[Ans. 2 x 102 A, 2.74 x 10-6 ms-1]

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