Question

A piece of wire of resistance R is cut into 5 equal parts. These parts are then connected in
parallel. If equivalence resistance is RA then find the ratio R/RA.​

Answer 1

Answer:

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Explanation:

Wire is cut into 5 equal parts. Since all dimensions are same for pieces, Resistance of each wire is equal and has a value = R/5. Resistance is proportional to length of wire and inversely proportional to area of cross-section. IF length is 1/5th, then Resistance is also 1/5 th of original value.

Answer 2

Answer:

a piece of wire of resistance R is 5