Series RLC Circuit Tic-Tac-Toe 1
By Terry Bartelt
By playing a game of tic-tac-toe, a student can review what happens to currents and voltages throughout a series RLC circuit when the applied frequency is increased from 0 Hz towards resonance.
Inductive Reactance Practice Problems
By Patrick Hoppe
Students solve problems on the determination of total inductive reactance of series-parallel inductors.
Capacitive Reactance Practice Problems
Students solve problems on the determination of total capacitive reactance of series-parallel capacitors.
RC Time Constant
By Tim Tewalt, Patrick Hoppe
In this animated object, learners observe the voltage on a capacitor at various time constants when it either charges or discharges. Students then answer questions in the categories of Identify, Compare, and Compute.
Energizing Time Constants of an RL Circuit
In this animated object, students view an explanation of how current, voltage, and the magnetic field strength of a series RL circuit change during five time constants. A brief quiz completes the activity.
Rotating Vector Representation of the Sine Function
The learner will be able to represent steady-state AC sinusoidal signals using phasors, which will lead to a simplified technique of analyzing AC circuits in a very similar way that we analyze DC circuits.
Inductive Reactance Demonstration 1
Learners view video clips showing how coiled wire provides more resistance to AC current flow than uncoiled wire.
Transfer Functions: The RL High Pass Filter (Screencast)
Learners read how the RL high pass filter is developed. The transfer function is used in Excel to graph the Vout. The circuit is also simulated in Electronic WorkBench and the resulting Bode plot is compared to the graph from Excel.
Transformer Practice Problems
Students solve practice problems on voltage, current, and impedance matching. Examples precede the problems.
The Reflected Load in a Transformer (Screencast)
Learners examine how the load resistance connected to the secondary coil of a transformer affects the primary current. A brief quiz completes the activity.
AC Voltage Conversions (Screencast)
In this animated object, learners examine the formulas used to convert peak, RMS, average, and peak-to-peak AC voltages. A brief quiz completes the activity.
Power Factor Correction 1
Students read an explanation of power factor correction. Examples of both inductive and capacitive loads are given.
Power Factor Correction 2
Students read an explanation of power factor in a power distribution and how it can be improved by using a power factor correction capacitor bank. A brief quiz completes the activity.
Voltages Across Series and Parallel Capacitive Circuits (Screencast)
In this interactive and animated object, learners examine how dc voltages develop across capacitors that are connected in series and in parallel.
Charging Time Constants of an RC Circuit (Screencast)
In this animated object, students view an explanation of how current, voltage, and the charge on a capacitor of a series RC circuit change during five time constants. A short quiz completes the activity.
Discharging Time Constants of an RC Circuit (Screencast)
In this animated object, learners examine how current, voltage and the discharging capacitor of a series RC changes during 5 time constants. A brief quiz completes the activity.
The Horizontal Portion of the Sine Wave
In this animated object, learners examine cycles, frequency, Hertz, wavelengths, and periods. A brief quiz completes the activity.
Capacitor Values (Screencast)
In this screencast, learners examine the physical facets that determine the value of a capacitor.
Oscilloscope Frequency Measurements (Screencast)
Learners read a description of how an oscilloscope is used to measure the frequency of a sine wave.
Oscilloscope Phase Shift Measurements (Screencast)
In this animated lesson, learners follow the steps required to read the phase shift difference in degrees between two AC waveforms.
Op Amps 5: Non-Inverting Amplifier Circuit Resistance
By Todd Van De Hey
The learner will calculate basic circuit resistance.
Op Amps 6: Circuit Resistance for the Inverting Amplifier
The learner will calculate input and output circuit resistance for the Inverting Op-Amp configuration.
Op Amps 2: The Non-Inverting Amplifier
The learner will describe the non-inverting op-amp configuration and calculate the circuit gain.
Op Amps 3: The Inverting Amplifier
Describe the inverting op-amp configuration and calculate the circuit gain.
Op Amps 1: The Operational Amplifier
The learner will examine the basic characteristics of the operational amplifier integrated circuit and solve for Vout.