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A piece of iron wire has a resistance of 30. What will be the resistance of aluminum wire of one-fourth the length and one third the diameter of iron wire. It the specific resis…

A piece of iron wire has a resistance of 30. What will be the resistance of aluminum wire of one-fourth the length and one third the diameter of iron wire. It the specific resis…
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A piece of iron wire has a resistance of 30. What will be the resistance of aluminum wire of one-fourth the length and one third the diameter of iron wire. It the specific resistance of aluminum is 30 times that of silver. [Ans: 202.5.02] ​

User Fagner Brack
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Explanation: R=p l/A , we are given specific resistance of aluminium in terms of silver.

User Toxicable
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