Learners examine the impedance matching capability of a transformer and how to select the proper turns ratio to achieve this function. A brief quiz completes the activity.

Students read an explanation of power factor correction. Examples of both inductive and capacitive loads are given.

Students read the multivariable theorems and view the graphic depictions of the Boolean expressions.

In this animated object, students observe how the pulsating DC output voltage of a full-wave rectifier is filtered by a capacitor.

In this interactive object, students work 11 practice problems and solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.

Students complete 10 practice problems.

Learners view animations and video clips showing how power is transmitted from one energized coil to another.

In this interactive object, learners determine the Vp, Vp-p, Vrms, Vavg, and the frequency of a sine wave that is displayed on an oscilloscope screen.

Learners review Ohm's Law and 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.

In this learning activity you'll describe the operation of a logic inverter using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.

Students review logarithms as they pertain to electronics.

In this interactive lesson, students view the operation of a solenoid and read about its application. A brief assessment concludes the activity.

Students solve practice problems on voltage, current, and impedance matching. Examples precede the problems.

Learners examine a series-parallel circuit and solve 14 problems related to voltage, current, and power. A help screen is provided.

In this interactive object, learners solve for total resistance, total current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.

In this interactive object, learners determine the pulse width, period, duty cycle, and frequency of a waveform.

In this interactive object, students calculate capacitive reactance, impedance, current, and power in parallel RC circuits.

In this animated object, learners examine the procedure used to determine the types of terminals on a single-pole, double-throw switch.

Students read a definition of Kirchhoff's Voltage Law and view examples of its use.

Students work six practice problems to determine the total impedance of a parallel circuit.

Students view several examples of how to determine the total impedance of a series circuit. The "j" term is used in all of the calculations.

In this animated object, learners examine the recommended procedure for troubleshooting a defective JK flip-flop using a logic pulser and probe.

In this learning activity you'll review the operation of a NOR gate by using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.

In this animated activity, learners examine the fundamental operation of a logic probe that is used to detect logic signals in a digital circuit.

Students read about light-emitting diodes, including LED voltage and current, and how to protect against reverse voltage.