A wire with resistance R is sliced into two sections of equal length. The two halves are connected in a parallel manner. What is the combination's resistance?

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A wire with resistance R is sliced into two sections of equal length. The two halves are connected in a parallel manner. What is the combination’s resistance?

CBSE | Class 10 | Electricity | Lakhmir Singh | Physics

A wire with resistance R is sliced into two sections of equal length. The two halves are connected in a parallel manner. What is the combination’s resistance?

Answer:

Given that each part’s resistance is R/2

Let’s call the resulting resistance R’.

1/R’ = 2/R + 2/R

R’ = R/4