Q.

From the combination of resistors with resistance values R1=R2=R3=5Ω and R4=10Ω, which of the following combination is the best circuit to get an equivalent resistance of 6Ω          [2025]

 

1  
2  
3  
4  

Ans.

(1)

1Req=110+115=3+230=16  Req=6Ω