Learners are introduced to the maximum power transfer theorem. Examples show the load as it varies and the results are graphed.

In this learning activity you'll identify the voltage levels produced or recognized by digital logic devices as valid or invalid logic state signals.

In this animated activity, learners view the flip-flop and read about its outputs, the information it stores, and its storage conditions. A quiz completes the lesson.

Learners read an explanation of how to connect two 7485 ICs to compare binary numbers by creating an 8-bit comparator. Diagrams and charts are presented.

Students read about the concepts of saturation and cutoff. They view diagrams that illustrate the interaction of the load line and the family of curves.

The learner views the operation of a transistor switching from saturation to cutoff. A brief quiz completes the activity.

In this animated object, learners examine the operation of a temperature alarm circuit that uses a thermistor in a Wheatstone Bridge.

In this animated object, learners examine how the rotation of an induction AC motor's armature slips behind the synchronous rotational speed of the stator's field to create magnetic fields. These fields interact and produce torque. A quiz completes the activity.

Learners consider why an impedance matching transformer is needed to connect an antenna to a television.

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.

Learners are introduced to primary and secondary batteries. Examples are given.

In this animated object, learners view the operation of an open-collector inverter with and without a pull-up resistor.

Learners observe the animated operation of an astable mulivibrator using a 555 IC (integrated circuit) chip and external components.

Learners read how to calculate the MOD number and how it is used.

Students look at the power dissipated by a single gate and by an IC. The concept of average current draw is introduced and examples are provided.

In this animated and interactive object, learners examine how changes in applied voltage affect the current and voltages in a zener diode voltage regulation circuit. A short assessment completes the activity.

In this interactive object, learners analyze a series-parallel DC circuit problem in a series of steps. Immediate feedback is provided.

Learners compare animations of analog and digital data signals. A short quiz completes the activity.

Students review the Current Divider Rule (CDR) and work practice problems.

Learners view an animated demonstration of how to determine the final output of the combinational circuit.

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.

Learners examine how an electromagnet is formed. Animated illustrations show current running through a coil wrapped around an iron core.

Learners test their knowledge of the variations of Watt's Law and Ohm's Law with this quiz.

Students view a dc analysis of an emitter-biased NPN transistor.

Students read about decibel power gain and decibel voltage gain. Examples are given for each.