A wire of length is stretched to 3m from its original length 1m. If its initial resistance was 10 ohms find the resistance of the wire after stretching it.
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Answer:
90 OHM
Explanation:
R1 = 10 OHM
R2 = ?
L1 = 1 M
L2 = 3M
R1 / R2 = [L1/L2 ] [ L1 / L2]
10 / X = 1 / 9
X = 90 OHM
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