Question

A resistor of 24 ohm's resistence is bent in the from of a circle as shown in the figure . what if the effective residence between point A and B

Answer 1

Hi...

the resistance of straight wire = 24ohm

when it is bent in the form of a closed circle, the wires will be connected in parallel. Also, the length will be half, so resistance will also become half,

so resisteance of each part connected in parallel will be 12ohms.

Now, resistance in parallel combination, 1/R = 1/R1 + 1/R2

1/R=1/12 + 1/12

1/R=1/6

R=6ohm.

Hope this helps u!