Series-Parallel DC Circuits Analysis

By Patrick Hoppe

Learners follow a methodical approach for the dc analysis of series-parallel circuits.

Current in a Series Circuit

By Terry Bartelt

In this learning activity you'll determine what happens to current flow in a series circuit when the resistance is changed.

The Superposition Theorem

The superposition theorem is explained as it relates to dc circuit analysis. Examples are given.

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.

Shorts Affecting Current in a Series Circuit

In this learning activity you'll review how a short affects current flow and voltage in a series circuit.

The Magnetron Ignition System

Learners read an explanation of how the Magnetron Ignition System uses a solid state switching component, a step-up transformer, and magnetism to provide a high voltage spark in a one-cylinder combustion engine.

What Is Electricity?

The learner studies how electrons travel from one atom to the next. Examples demonstrate how voltage is created by the use of a battery or through magnetism. A quiz completes the activity.

Opens Affecting Current in a Series Circuit

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

Methods of Producing Electricity

In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.

Effects of a Rheostat in a Series Circuit

In this animated object, learners examine how the way in which a rheostat is connected in series with other resistors causes current and voltage to change as the resistance is varied. A brief quiz completes the activity.

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.

Abbreviations Representing Electrical Quantities

In this learning activity you'll identify abbreviations that represent quantities associated with electrical circuits.

Norton's Theorem

Learners follow the steps for reducing all of the elements of a complex circuit to a single current source and a single source resistance to create a simple circuit. Several examples are given for dc circuits. The conversion between Thevenin and Norton is also presented.

Total Resistance in a Parallel Circuit

The learner will apply the three formulas used to find the total resistance of three types of parallel resistor circuit configurations.

Basic Logic Gates

By Terry Bartelt, Terry Fleischman

The learner will understand the operation of the six fundamental logic gates and the inverter by using truth tables, Boolean Algebra equations, switch analogies, and written statements.

Measuring Current in a Parallel Circuit

In this interactive learning object, students view the ammeter connections for measuring currents in a parallel circuit with three branches on an energy concepts lab board. A brief quiz completes the activity.

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.

Proper Meter Placement

In this learning activity you'll read the steps for proper meter placement for the measurement of resistance, voltage, and current.

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.

How Adding Parallel Branches Decreases Total Resistance

In this animated object, learners follow an analogy of water flowing through pipes and valves to see how resistance decreases in a parallel circuit as branches are added.

Wheatstone Bridge

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

Opens and Shorts in a Parallel Circuit

Learners examine the changes in current and voltage values in a parallel circuit when open and short conditions develop. Ohm's Law calculations are shown, and a brief quiz completes the activity.

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 Divider Rule (VDR)

By Terry Fleischman, Patrick Hoppe

Students review the Voltage Divider Rule and work practice problems.