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resistance of a wire is r ohms.if the length of the wire is doubled then resistance will be

resistance of a wire is r ohms.if the length of the wire is doubled then resistance will be

Grade:12

1 Answers

Bhavan
34 Points
3 years ago
The resistance of the wire will be quadrupled .
R=K l / A , when the length is doubled,
R=K 2l /A/2
R=K l / A * 4

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