Voltage Divider Rule Practice Problems

By Patrick Hoppe

Learners review the VDR and work six problems. Immediate feedback is given.

The DC Motor

By Terry Bartelt

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.

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.

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.

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.

An Introduction to the Digital Multimeter

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

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.

Electromagnets

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

Series-Parallel Practice Problems Circuit 4

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

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.

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.

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.

Kirchhoff's Voltage Law

Students read a definition of Kirchhoff's Voltage Law and view examples of its use.

DC/AC I: Unit 5 Sample Exam

Learners answer 14 questions about series-parallel DC circuits.

Series Inductance: Practice Problems

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.

Power Calculations in a Series/Parallel Circuit

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

Total Impedance of a Series Circuit Using Complex Numbers: Practice Problems

Students solve six problems for series impedance using complex numbers. Immediate feedback is given.

Sine Wave Fundamentals: Practice Problem #4

In this interactive object, learners determine the Vp, Vp-p, Vrms, Vavg, and the frequency of a sine wave that is displayed on an oscilloscope screen.

Series-Parallel Circuit Analysis Practice Problems: Circuit 10

Learners examine a series-parallel circuit and solve 14 problems related to voltage, current, and power. A help screen is provided.