BASIC DC CIRCUIT CALCULATIONS
Basic DC Theory
Figure 18 Resistance in a Series Circuit
The total voltage across a series circuit is equal to the sum of the voltages across each resistor
in the circuit (Figure 19) as shown in equation (2-4).
VT
=
V1 + V2 + V3 ... etc.
(2-4)
where
VT
=
total voltage
V1
=
voltage across R1
V2
=
voltage across R2
V3
=
voltage across R3
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