In how many parts (equal) a wire of 100Ω be cut so that a resistance of 1Ω is obtained by connecting them in parallel ?
10
5
100
50
A
50
B
100
C
10
D
5
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Solution
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The resistance of the conductor is proportional to length of the conductor. That is, R=ρlA. The resistance of one wire of length l, R1 = 100 ohms.
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