Please explain Ans is 8 ohm

Asked by valavanvino1011 | 28th Jun, 2019, 09:06: PM

Expert Answer:

The effective resistance of two 2 ohm resistance is 
1 half plus fraction numerator begin display style 1 end style over denominator begin display style 2 end style end fraction equals fraction numerator begin display style 1 end style over denominator begin display style R end style end fraction
R equals 1 capital omega
Now all the resistance are connected in series including the internl resistance(1 ohm) of the cell.
4+1+2+1=8ohm

Answered by Utkarsh Lokhande | 29th Jun, 2019, 07:39: AM