Physics, asked by varmanamazzehomes, 9 months ago

a wire of resistance 9ohm is doubled on itself .find new resistances

Answers

Answered by PalakJha30

2

Answer:

It means its length will get half and area of cross section will get doubled. Thus, R' = p' l'/A' = p (l /2) ÷ 2A = !/4 (p l / A) = 1/4R = 1/4 × 4 = 1Ω

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