An Inductor Opposing a Current Change
By Terry Bartelt
Learners read how an inductor opposes a current change when it begins to energize and when it begins to de-energize. A short quiz completes the activity.
The Edison Wire System
Learners read a description of the wiring configuration of a residential Edison Wire System, which consists of a transformer secondary circuit. The circuit supplies two 115-volt sources and one 230-volt source.
Transfer Functions: The RC Low Pass Filter
By Patrick Hoppe
Students read how the transfer function for a RC low 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.
Power Calculations in a Series/Parallel Circuit
In this learning activity you'll explore various ways to calculate the power consumed in a series/parallel circuit.
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 2: The Non-Inverting Amplifier
By Todd Van De Hey
The learner will describe the non-inverting op-amp configuration and calculate the circuit gain.
Parallel Inductance: Practice Problems
Students work nine practice problems to determine the total inductance of a parallel circuit. Immediate feedback is given.
Norton's Theorem
Learners follow the steps for reducing all of the elements of a complex circuit to a single current source and a single source resistance to create a simple circuit. Several examples are given for dc circuits. The conversion between Thevenin and Norton is also presented.
Karnaugh Maps
Learners examine the Karnaugh map for a three-variable system. Several examples are given.
Electrical Switches & Pushbuttons
In this learning activity you'll review the operation and schematic symbols of various types of switches and push buttons used for electronic circuits.
Series RL Circuit Vector and Circuit Analyzer
By James Bourassa, John Rosz
Learners alter circuit variables and view how these changes affect circuit voltage, current, reactance, impedance, and phase angle.
Op Amp Fundamentals: The Transconductance Amplifier
Students read an introduction to the transconductance amplifier. They also view formulas for voltage-to-current conversion, closed-loop input, and output impedance. An example of how R1 controls the conversion factor is given.
Capacitors Series - Parallel: Practice Problems
Students complete 10 practice problems.
AC Current Flow
In this interactive and animated object, learners examine the flow of electron current into and out of hot and neutral sockets during each alternation of an AC waveform. A brief 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.
Converting Values in Engineering Notation
By Ron Wallberg
The learner will convert various values to engineering notation.
Proper Meter Placement
In this learning activity you'll read the steps for proper meter placement for the measurement of resistance, voltage, and current.
Ammeter Circuit Connections
In this animated activity, students view a step-by-step approach of how to connect an ammeter to a circuit. A brief quiz concludes the lesson.
Opens and Shorts in a Parallel Circuit
Learners examine the changes in current and voltage values in a parallel circuit when open and short conditions develop. Ohm's Law calculations are shown, and a brief quiz completes the activity.
Ohm's Law Practice Problems #1
Learners review Ohm's Law and then work 12 problems. In each of the problems, students are given two of the three variables (voltage, resistance, or current) and are asked to solve for the third.
How Adding Parallel Branches Decreases Total Resistance
In this animated object, learners follow an analogy of water flowing through pipes and valves to see how resistance decreases in a parallel circuit as branches are added.
Opens Affecting Current in a Series Circuit
In this learning activity you'll review how an open in a series circuit affects current.
Transistor Fundamentals: AC Models
Students read about the four steps to creating an ac model and view examples.
Resistor Color Code Description
In this interactive activity, students read about the colored stripes on a resistor and interpret the placement of those colors to determine the value of four-band resistors.
Series RC Circuit Vector and Circuit Analyzer
In this teaching and learning aid, the user can alter circuit variables and view how these changes affect circuit voltage, current, reactance, impedance, and phase angle.