Question

A wire of length L is wound to form a circle then find resistance between two points A and B at an angle of 30?

Answer 1

Hi buddy

Here is your answer

☑️ Let

LetR=ρLA

If a wire of length L is bend to form a loop, then radius of the loop:r=L2π

Length of the wire segment l=rθResistance of the first

Resistance of the second wire segment:R2=ρr(2π−θ)A

These two segments are in parallel. Therefore net

On solving:Rnet=(2π−θ)θρr2πA

Substitute r=L2π on the above equation:

Rnet=(2π−θ)θR4Π2

Hope its help

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#sibi ❤️