Question

find the equivalent ressistance of the value of the three ressistor 5ohm 12 ohm 8ohm in the series with 3 cells. each of 2v in series also find the voltage across largest ressistance value and current in the circuit ?

Answer 1

Req=5+12+8
=25ohm
Total Voltage=3*2=6V
Current,I= V/R
=6/25
=0.24Ampere
Since the resistors are in series same current flows through them
Therefore
V across highest resistor,12ohm=IR
V=0.24*12
=2.88V