Opens Affecting Current in a Series Circuit

By Terry Bartelt

In this learning activity you'll review how an open in a series circuit affects 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.

Watt's Law

In this animated object, students examine the concept of wattage dissipation and the three Watt's Law formulas.

Boolean Theorems (Multivariable)

By Patrick Hoppe

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

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.

Fan-Out: Determining the Load Drive Capability of an IC

Students follow steps to determine the number of inputs that can be driven by a specific IC. A sample problem is given.

Pulse Train Fundamentals

Learners examine the fundamentals of a pulse train. Concepts such as time on, time off, duty cycle, period, and frequency are covered.

NOR Gates

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.

Logic Probe Troubleshooting

In this animated object, learners follow a process for troubleshooting digital integrated circuits on a printed circuit board using a logic probe.

Transistor Fundamentals: Base-Biased NPN Transistor

Students view a dc analysis of a base-biased NPN transistor.

Transistor Fundamentals: AC Coupling Capacitors

Students view the design and function of an ac model for a transistor circuit.

Op Amp Fundamentals: The Inverting Amplifier

The inverting amplifier configuration is presented. The closed loop voltage gain and the closed loop bandwidth formulas are explained, along with the concept of negative feedback.

Silicon Diode Basics

This primer introduces the student to the key terms and concepts associated with the silicon diode.

The Full-Wave Rectifier

Learners view the operation of a full-wave rectifier which has two diodes.

Rectifier Filtering

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

The Zener Diode

Students read about the operation of the zener diode. This activity includes the ideal zener, the breakdown operation, the calculation of series, and zener and load current.

The Transistor Symbol

In this animated and interactive object, learners use a memory device to identify NPN and PNP transistors. Learners also examine how much the transistors turn on when the voltage applied to the base is varied.

Full-Wave Rectifier

Students examine the full-wave rectifier. They review appropriate formulas and examples of actual circuits.

Rotating Vector Representation of the Sine Function

The learner will be able to represent steady-state AC sinusoidal signals using phase vectors, which will lead to a simplified technique of analyzing AC circuits in a very similar way that we analyze DC circuits.

Series RC Circuit Vector and Circuit Analyzer

By James Bourassa, John Rosz

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.

Inductive Reactance Practice Problems

Students solve problems on the determination of total inductive reactance of series-parallel inductors.

Dielectric Constant

This learning activity presents information on how the type of material used for the dielectric of a capacitor affects the capacitor's value in farads.

Capacitive Reactance Practice Problems

Students solve problems on the determination of total capacitive reactance of series-parallel capacitors.

Eddy Current Demonstration

Learners view two animations that show the effects of eddy currents.

Charging Time Constants of an RC Circuit

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.