Definitions [3]
Define Capacitive reactance.
The effective resistance offered by the capacitor is called capacitive reactance (ΧC).
`Χ_C = 1/omega_C`
`= 1/(2 pi fC)`
Define Impedance.
The effective opposition offered by the inductor, capacitor and resistor connected in series to flow of AC current. is called impedance.
Z = `sqrt("R"^2 + (Χ_"L" - Χ_"C")^2)`
Define a Transformer.
The transformer is a device used for converting low voltage into high voltage and high voltage into low voltage. It works on the principle of electromagnetic induction.
Concepts [10]
- Alternating Current (Ac): an Introduction
- Different Types of AC Circuits: AC Voltage Applied to a Resistor
- Representation of AC Current and Voltage by Rotating Vectors - Phasors
- Different Types of AC Circuits: AC Voltage Applied to an Inductor
- Different Types of AC Circuits: AC Voltage Applied to a Capacitor
- Different Types of AC Circuits: AC Voltage Applied to a Series LCR Circuit
- Power and Power Factor
- Transformers
- Resonance
- Reactance and Impedance
