Question

A circuit of 4 ohm is binding and making it a circle. What is the resistance of this circuit?​

Answer 1

$\huge \fbox \red{❥ Answer}$

As the wire is bent at its mid point, thus resistance of each semi-circle  R=210

$r = \frac{10}{2}$

= 5Ω

Effective resistance between A and B     

=> Reff = 5Ω∣∣5Ω

⟹ Reff =

$\frac{5 \times 5}{5 + 5}$

= 2.5Ω.

• I Hope it's Helpful.