Series Inductance: Practice Problems

By Patrick Hoppe

Students work nine practice problems to determine total series inductance. Immediate feedback is given.

Parallel DC Circuit Analysis

The approach to dc circuit analysis is presented to the learner. The approach is demonstrated for the student.

The TI-83 Plus Calculator: The Square Root Function

Learners follow step-by-step instructions for calculating the square root of a number using the TI-83 Plus scientific calculator. Steps for determining impedance are also shown.

Lathe Project: Alternate Thread Forms - Left Hand Threads

By Kelly Curran

This project gives a drawing with steps to complete the activity.

Power Calculations in a Series/Parallel Circuit

By Terry Bartelt

In this learning activity you'll explore various ways to calculate the power consumed in a series/parallel circuit.

Ohm's Law Practice Problems #1

Learners review Ohm's Law and then 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.

Surface Finish

By Barbara Anderegg

Learners review surface finish basics and read how to calculate the roughness average.

Motor Action

In this animated and interactive object, learners examine the interaction between a conductor that represents a motor armature and a magnetic field that represents a motorâ€™s main field. This interaction causes the shaft to turn.

Lathe Project: Turning Between Centers

By Thaddeus Hetzer

Learners read work instructions and view a drawing for turning between centers on a lathe.

Transformers

Students read an introduction to transformers that includes schematic symbols, turns ratios, mutual inductance, and the coefficient of coupling.

Time Proportioning Application

In this animated activity, students view the plastic pellets in a profile extrusion machine being melted as the temperature of the heating elements is elevated by a time proportioning control system.

Capacitors Series - Parallel: Practice Problems

Students complete 10 practice problems.

Transformer Loading

In this animated activity, learners see that changing the resistance value of the load in the secondary of a transformer causes current to vary in the primary.

Total Impedance of a Series Circuit Using Complex Numbers

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.

Series-Parallel Practice Problems Circuit 4

In this interactive object, learners work 12 problems dealing with dc circuit analysis.

Electromagnets

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

Frequency Dividers

In this learning activity you'll explore the operation of frequency division using several different types of counters.

Power Factor

Learners read about the concepts of true power, reactive power, and apparent power, and are introduced to the power factor formula. A short quiz completes the activity.

Electrical Units, Abbreviations, and Symbols

In this learning activity you'll read introduction to electrical quantities, units, and symbols and test their knowledge in a matching exercise.

An Introduction to the Digital Multimeter

In this learning activity you'll explore the functions and proper operation of a digital multimeter.

Sine Wave Fundamentals

Learners examine the characteristics of a sine wave and the various ways to describe it including Vp, Vp-p, Vrms, Vavg, and frequency.

Op Amp Fundamentals: The Non-Inverting Amplifier

Students are introduced to the non-inverting amplifier configuration. The formulas for closed loop gain and bandwidth are shown, and an example is given.

Parallel RL Circuit Vector and Circuit Analyzer

By James Bourassa, John Rosz

Learners alter circuit variables and view how these changes affect circuit voltage, current, reactance, impedance, and phase angle.

Sequencer Output Instruction for the SLC-500 PLC

By Craig Hemken

Learners examine the fundamental concepts of sequencer output instruction. A simulated example shows a sequencer in operation.

The DC Motor

Learners examine the wiring of the primary components of the three types of DC motors, series, shunt, and compound. The operational characteristics of each type of motor are described. A quiz completes the activity.