Question

a piece of wire of resistance R is cut into 20 equal parts then joined in parallel.what is the equivalent resistance of this combination​

Answer 1

Answer:

refer to the picture given above

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Answer 2

Answer:

R=R/20

Explanation:

Since the piece of wire is cut into 20 equal parts and connected in parallel

Therefore, 1/R = 1/R +1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R+1/R

Therefore,1/R=20/R

Therefore,R=R/20