RC Source-Free DC Response

Resistance ohms
Capacitance farads
Coefficient
A1

The resistance is ohms.
The capacitance is farads.
The time constant (tau) is seconds.

The voltage function is . The capacitor is acting as a temporary voltage source.

RL Source-Free DC Response

Resistance ohms
Inductance henrys
Coefficient
A1

The resistance is ohms.
The inductance is henrys.
The time constant (tau) is seconds.

The current function is . The inductor is acting as a temporary current source.

Series RLC Source-Free DC Responses

Resistance ohms
Inductance henrys
Capacitance farads
Coefficients for Overdamped and Critical Damping Scenarios
A1 A2
Coefficients for Underdamped Scenario
B1 B2

The resistance is ohms.
The inductance is henrys.
The capacitance is farads.
The neper frequency is Hz.
The resonant frequency is rad/s.
The damping scenario is .

The current function is

Parallel RLC Source-Free DC Responses

Resistance ohms
Inductance henrys
Capacitance farads
Coefficients for Overdamped and Critical Damping Scenarios
A1 A2
Coefficients for Underdamped Scenario
B1 B2

The resistance is ohms.
The inductance is henrys.
The capacitance is farads.
The neper frequency is Hz.
The resonant frequency is rad/s.
The damping scenario is .

The voltage function is

DC Load Power Computation

Given the Thevenin Voltage, Thevenin Resistance, and Load Resistance, this script will calculate the power dissipated by the load resistance connected to a Thevenin equivalent circuit. It will also compute for the power transfer efficiency.
Enter the Thevenin Voltage (Vth) = volts
Enter the Thevenin Resistance (Rth) = ohms
Enter the Load Resistance (Rload) = ohms

The current is = amperes
The power dissipated at the load (Pload) is = watts
The power transfer efficiency is = %

Norton to Thevenin Converter

The calculation below helps transform a practical current source into a practical voltage source.
Enter the Norton Current (In) = amperes
Enter the Norton Resistance (Rn) = ohms

The Thevenin Voltage (Vth) is = volts
The Thevenin Resistance (Rth) is = ohms

Thevenin to Norton Converter

The calculation below helps transform a practical voltage source into a practical current source.
Enter the Thevenin Voltage (Vth) = volts
Enter the Thevenin Resistance (Rth) = ohms

The Norton Current (In) is = amperes
The Norton Resistance (Rn) is = ohms

Question: How is maximum power transfer attained in AC circuits?


Answer:

Maximum power transfer occurs when the impedance Z is purely resistive. This is achieved by utilizing capacitors for power factor correction.

Question: What are the powers normally associated with AC circuits?


Answer:

The types of powers normally associated with AC circuits are real power and reactive power.

Question: The total power dissipation in an RL series circuit is due to which component?


Answer:

The total power dissipation is due to the resistance.

Question: How does frequency affect the impedance and admittance of a capacitor?


Answer:

The impedance Z of a capacitor is given as 1/jwC where w is 2(π)f. The higher the frequency, the smaller the value of the impedance.

Admittance Y is simply the reciprocal of impedance. Therefore the higher the frequency, the larger the value of the admittance.

Question: How does frequency affect the impedance and admittance of an inductor?


Answer:

The impedance Z of an inductor is given as jwL where w is 2(π)f. The higher the frequency, the larger the value of the impedance.

Admittance Y is simply the reciprocal of impedance. Therefore the higher the frequency, the smaller the value of the admittance.

Question: What is the voltage waveform produced by an AC generator?


Answer:

The voltage waveform produced by an AC generator is sinusoidal.

Question: What is another name for effective voltage?


Answer:

Root Mean Square (RMS) Voltage is another name for effective voltage.