Question

13. A Wire of resistance 10 ohm is bent to form a closed arcie What is the resistance across a
diameter of the circler?​

Answer 1

Answer:

it is 2.5 ohms as

the resistance of straight wire=10 ohm

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 resistance of each part connected in parallel Will be 5 ohms.

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

1/R=1/5+1/5

1/R=2/5

R=5/2=2.5

I HOPE THIS WILL HELP YOU