Question icon
Electric Current

How to solve this problem using cells in parallel or series concept?(I know how to solve it using kirchoff’s kcl)

Question image for How to solve this problem using cells in parallel
Profile image of karthik gunturi
7 Years agoGrade
Answers icon

1 Answer

Profile image of Vikas TU
7 Years ago
In DAB circuit, the net emf and resistance becomes respectively as: 1 V and 3 ohms. with the battery sign equivalent to 2 V.
In DCB ckt., the net emf and resistance becomes, 2 V and 4 ohms respectively with the battery sign 3V.
 
Now assuming 0 volt emf in BD series we will apply emf formukla for parallel combination,
Emf => (-1/3 + 0/2 + 1/2)/(1/3 + ½ + 1/4)
           => 2/13 volts
 
Resistance equivalent => (1/3 + ½ + 1/4) => 2/13 ohms
 
Net current flowing in the circuit would be => I = V/R =  1 A.