In this interactive object, learners test their knowledge of 14 geometric tolerance control symbols.
How Current Requires Voltage
By Terry Bartelt
This learning activity uses a water pressure analogy to present the concept that voltage pressure is required to cause current flow.
In this animated lesson, students view the operation of an electromechanical relay. A brief quiz concludes the activity.
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.
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.
By Lynette Teal
Learners examine the main characteristics of the four financial statements required in accounting: the income statement, the owner's equity statement, the balance sheet, and the statement of cash flow.
Mathematical Expression of an AC Sine Wave
By Patrick Hoppe
Students view the mathematical expression of an AC waveform with respect to time (t) and read about the different components of this expression.
Phase Relationships Between Line-Neutral and Line-Line Voltages
By Michael Gradinjan, Terry Fleischman
Learners view a demonstration showing that line-neutral voltages and line-line voltages are not in-phase with each other, but have a definite 30-degree relationship.
Total Impedance for Series-Parallel Circuits Using Complex Numbers
Students follow the steps for finding the total impedance for a series-parallel circuit. Several examples are given.
Total Impedance for Series-Parallel Circuits Using Complex Numbers: Practice Problems
Students solve five problems to determine the total impedance of a series-parallel circuit. Immediate feedback is given.
Vulnerability Assessment & Attack Mitigation Terms
You'll focus on information relating to vulnerability assessments and attack mitigation.
Which way did they go,George?
Select the word that matches the definition or the quote.
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