Westonci.ca offers quick and accurate answers to your questions. Join our community and get the insights you need today. Get immediate answers to your questions from a wide network of experienced professionals on our Q&A platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

A uniform wire is cut into 4 segments. Each segment is twice as long as the earlier segment. If the shortest segment has a resistance of 4 ohm, find the resistance of original wire.

Sagot :

AL2006
The resistance of a piece of wire is directly proportional to its length, so we know that just like the length, the resistance of each segment is also twice the resistance
of the previous ('earlier') segment.

So the resistances of the segments are:

4
8
16
32

and their total resistance before they were cut up was

(4 + 8 + 16 + 32) = 60 ohms