Calculate Total Voltage Using Kirchhoff's Voltage Law - Tutorial

Definition:

Kirchhoff's Voltage Law means that the total amount of manipulated potential difference or voltage existing near to a network must be 'Zero'.

Formula :
VT = VR0 + VR1 + VR2 + ... + VRn
Where,

n = Number of Voltages VT = Total Voltage

Example :

Based on the below given diagram compute the total voltage of a closed circuit?

Kirchhoffs Voltage Law
Given :

VR1 = 4V VR3 = 8V VR4 = 2V VT = 20V

To Find :

Total Voltage

Solution :
VT = VR0 + VR1 + VR2 + ... + VRn
VT = VR1 + VR2 + VR3 + VR4
20V = 4V + VR2 + 8V + 2V
VR2 = 20V - (4V + 8V + 2V)
VR2 = 6V

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