Series Circuits - Combinations
Ohm's Law is used to solve circuit problems which may contain all three elements: resistors, inductors, and capacitors. These circuits are sometimes called R LC circuits using the symbol R for resistance, L for inductance and C for capacitance. The general form of Ohm's Law applied to R LC circuits states:
Voltage = Current x Total Impedance, or V = A times R where;
Total impedance is the result of combining the impedances of the resistance and inductive and capacitive reactance components of the circuit. This is not done by simple addition.
EXAMPLE Series R LC AC Circuit
Determine the total impedance and current flow for the circuit shown.
Obtaining the total impedance through vector addition and power factor from the angle between total impedance and resistance:
Determine the current flow.
the power factor of the circuit can also be found by dividing the resistive component by the reactive component in the circuit.