Question

A resistor of 24ohm resistance is bent in the form of a circle as shown.What is effective resistance between points A and B

Answer 1

Hey.

Here is the answer .

Resistance of each semicircular part will be 24/2 ohm or 12 ohm as R is directly proportional to L.

Now these two are in parallel connection.

So, 1/R = 1/12 + 1/12

so, 1/R = 2/12 = 1/6

Hence, equivalent resistance R is 6 ohm.

Thanks.