Worksheet 13-RCL Circuits Flashcards
Define what an RCL circuit is.
An RCL circuit is one that contains at least one resistor resistor, capacitor and inductor.
For what type of signal can an RCL circuit pass current through all of its components?
An RCL circuit can only operate in an AC circuit. Any DC voltage applied and the circuit will cease to flow because of the high impedance of the capacitor.
In an RCL circuit, what is the unit of measure of resistance that each component produces?
Each of the components in an RCL circuit produce resistance to current flow, which is measured in Ohms.
What is the resistance to current flow that is caused by the inductor and the capacitor?
Resistance to current flow in an RCL circuit caused by the inductor and capacitor is called impedance.
What is the phase relationship between the impedance from the capacitor and inductor?
The impedance of capacitance and inductance is exactly out of phase (180 degrees out of phase).
What is the phase relationship from the applied voltage and the resistor?
A resistor will provide resistance in phase with the applied signal.
What is the unit of measure for an inductor in a circuit?
The unit of measure of an inductor is a Henry.
What is the resistance to current flow caused by an inductor in an AC circuit called?
The resistance to current flow in an AC circuit is called inductive reactance.
In a circuit that contains an inductor, how does the inductor affect current flow when current is first applied?
The inductor will inhibit current flow until the inductor’s magnetic field is fully charged.
What four factors affect the inductance of an inductor?
Four factors that control the inductance of an inductor are:
- Number of coil turns
- Material of the core (permeability)
- Cross-sectional area of coil
- Length of coil
What is the purpose of using a high permeability core in an inductor?
To direct magnetic fields of the coil with less loss of field strength.
What are the two electrical properties of a capacitor?
- Store energy in an electrostatic field
- Pass AC voltage while blocking DC voltage
How is a capacitor electrically different than a battery?
A capacitor can only store an electric field while a battery can generate one chemically.
What is the unit of measure of a capacitor?
Farad
What is the physical construction of a capacitor?
Constructed of two plates of a conductive material set apart from each other and separated by a non-conductive material called a dielectric.
Referring to the graph, describe the circuit if the reactance plot is straight up (X>0).
When the series circuit’s reactance plot is vertical, the circuit is purely inductive.
