A wire of resistance 5Ω is drawn(elongated) so that its length is doubled. Calculate its new
resistance.
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1
Answer:
Length got doubled
pi (r12) l1 = pi (r22) l2
(r12) / (r22) = 2
(r22) = (r12) /2
So resiatnace will be 4 times & it will be 5 * 4 = 20 ohms
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Answer:
new resistance is 20 ohm
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