Clive W. Humphris

**RCL SERIES: RC Series Circuit. **

When a capacitor and resistor are connected in series a current will flow to charge the capacitor. Current I is shown as being in phase with VR. VC will lag I by 90°. The two voltages VR and VC cannot be added directly and the phasor diagram is used to find the resultant or applied voltage amplitude and phase angle.

Voltage VC can be found using AC Ohm's Law where VC = Xc × I.

The resultant or applied voltage is that which is required or developed across the circuit with these particular component values. Note the resultant voltage can be greater than the individual values of VR or VC.

As this is a capacitive circuit the resultant voltage phase angle will lag the current I.

- Table of Contents
- Interactive eTextbooks
- Basic Electronics
- Conductor And Insulator
- Resistor Value Test
- Simple Dc Circuits
- Types Of Switching
- Variable Voltages
- Ohm's Law
- DC Voltage
- DC Current
- Series and Parallel Resistors
- AC Measurement
- AC Voltage and Current
- AC Theory
- RCL Series
- RCL Parallel
- Capacitance
- Capacitors
- Inductance
- Inductors
- Impedance
- Radio and Communication
- Tuned Circuits
- Attenuators
- Passive Filters
- Active Filters
- Oscillators
- Circuit Theorems
- Complex Numbers
- DC Power
- AC Power
- Silicon Controlled Rectifier
- Power Supply
- Voltage Regulation
- Electro-Magnetism
- Electrical Machines
- Transformers
- Three Phase Systems
- Energy Transfer and Cost
- Atomic Structures
- Diode Theory
- Diode Applications
- Transistor Theory
- Bipolar Transistors
- Transistor Configurations
- Active Transistor Circuits
- Field Effect Transistors
- Basic Operational Amplifier
- Op-Amp Theory
- Op-Amp Applications
- Sum and Difference Amplifiers
- Analogue Multi-Meter
- Component Testing