Maximum Power Transfer
By Patrick Hoppe
Learners are introduced to the maximum power transfer theorem. Examples show the load as it varies and the results are graphed.
Logic State Signals
By Terry Bartelt
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.
Cascading Magnitude Comparators
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.
Transistor Fundamentals: Collector Saturation and Collector-Emitter Cutoff
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 Transistor Switch
The learner views the operation of a transistor switching from saturation to cutoff. A brief quiz completes the activity.
Thermistor Temperature Alarm Circuits
In this animated object, learners examine the operation of a temperature alarm circuit that uses a thermistor in a Wheatstone Bridge.
The Induction Motor Slip
By Terry Bartelt, Terry Fleischman
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.
An Impedance Matching Application
Learners consider why an impedance matching transformer is needed to connect an antenna to a television.
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.
Learners are introduced to primary and secondary batteries. Examples are given.
The Open-Collector Logic Device
In this animated object, learners view the operation of an open-collector inverter with and without a pull-up resistor.
The 555 Astable Multivibrator
Learners observe the animated operation of an astable mulivibrator using a 555 IC (integrated circuit) chip and external components.
The MOD Number
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.
Zener Diode Voltage Regulation
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.
Series-Parallel Circuit Analysis: Practice Problems Circuit 1
In this interactive object, learners analyze a series-parallel DC circuit problem in a series of steps. Immediate feedback is provided.
Comparing Analog and Digital Signals
Learners compare animations of analog and digital data signals. A short quiz completes the activity.
Current Divider Rule (CDR)
Students review the Current Divider Rule (CDR) and work practice problems.
Development of a Boolean Expression for a Combinational Logic Circuit
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.
The Electrician's Wheel of Laws Quiz
By James Bourassa
Learners test their knowledge of the variations of Watt's Law and Ohm's Law with this quiz.
Transistor Fundamentals: Emitter-Biased NPN Transistor
Students view a dc analysis of an emitter-biased NPN transistor.
Transistor Fundamentals: Decibel Gain, Power, and Voltage
Students read about decibel power gain and decibel voltage gain. Examples are given for each.