Kirchhoff's Voltage Law means that the total amount of manipulated potential difference or voltage existing near to a network must be 'Zero'.
n = Number of Voltages VT = Total Voltage
Based on the below given diagram compute the total voltage of a closed circuit?
VR1 = 4V VR3 = 8V VR4 = 2V VT = 20V
|VT||= VR0 + VR1 + VR2 + ... + VRn|
|VT||= VR1 + VR2 + VR3 + VR4|
|20V||= 4V + VR2 + 8V + 2V|
|VR2||= 20V - (4V + 8V + 2V)|