Q.

The equivalent resistance of the circuit shown below between points a and b is                 [2023]

1 24 Ω  
2 3.2 Ω  
3 20 Ω  
4 16 Ω  

Ans.

(2)

The circuit can be reduced to

⇒  Req=16×416+4=165Ω=3.2 Ω