Zener Diode Voltage Regulation

By Terry Bartelt

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.

Wiring Integrated Circuits

Instructions on how to wire an integrated circuit are given.

Wires

Students examine the four factors that affect resistance of a wire: temperature, length, diameter, and the type of material from which it is made. A short quiz completes the activity.

Wheatstone Bridge Application

In this animated activity, students view how the Wheatstone bridge is used to activate a temperature alarm. A short quiz completes the lesson.

Wheatstone Bridge

Students follow step-by-step directions on how to make mathematical calculations for a Wheatstone bridge.

Waveforms of an SCR Circuit

Learners view waveforms at various locations of an SCR circuit controlling the intensity a light bulb. The waveforms are shown when the light is dim, at medium brightness, and at full brightness. A brief quiz completes the activity.

Waveforms of a Triac Circuit

Learners observe the waveforms in a circuit in which a triac controls the brightness of a lampâ€™s light. A brief quiz completes the activity.

Watt's Law

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

Volts Per Hertz Ratio

In this animated and interactive object, learners examine why the voltage produced by an AC drive must be increased when its frequency is increased due to inductive reactance.

Voltmeter Circuit Connections

Students read a step-by-step approach on how to connect a voltmeter to a circuit when making a measurement.

Voltages Across Series and Parallel Capacitive Circuits (Screencast)

In this interactive and animated object, learners examine how dc voltages develop across capacitors that are connected in series and in parallel.

Voltage, Resistance, and Current Relationships

In this learning activity you'll explain how voltage and resistance in a series circuit affect current flow.

Voltage Waveforms in an Edison Three-Wire System

Learners view the waveforms and voltages of an Edison Three-Wire System and read a description of the polarities across the secondary of the center-tap transformer. This transformer supplies power to residential homes.

Voltage Sources in Series

In this learning activity you'll explore the effect of connecting voltage sources in series to increase voltage applied to a load.

Voltage Sources in Parallel

The effect of connecting voltage sources in parallel to increase amperage to a load is presented.

Voltage Source Approximations

By Patrick Hoppe

Students examine the first and second approximations of a voltage source. A "stiff" voltage source is defined, and several examples are given.

Voltage Drops in a Series Circuit

Students study the concept that the voltage drop across a series circuit resistor is proportional to its resistance. They then complete a brief quiz.

Voltage Dividers

In this learning activity you'll determine the voltages that can be topped off of a multi-resistor voltage divider that has one main power source.

Voltage Divider Rule (VDR)

By Terry Fleischman, Patrick Hoppe

Students review the Voltage Divider Rule and work practice problems.

Voltage and Current Amplitudes in a Series RLC Circuit

Learners examine how voltages and currents vary in a series RLC circuit as the applied frequency changes.

Voltage and Current Amplitudes in a Parallel LC Circuit

In this interactive object, learners examine how voltages and currents vary in a parallel LC circuit as the applied frequency changes.

Vertical Controls

By Terry Fleischman

In this learning activity you'll read the procedures for using the vertical function of an oscilloscope and view illustrations of waveforms.

Vector Diagram for a Parallel RC Circuit

Learners read about the vector diagram for a parallel RC circuit. This animated lesson presents information on current flow through each branch, total current, and phase angle.

Variable Resistors

In this animated activity, students read about the two general types of variable resistors: potentiometers and rheostats. They then answer six multiple-choice questions.

True Power

Students read about the concept of true power and view examples of how it is dissipated as heat is provided.