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Students answer five questions concerning magnetism.
Comparing Analog and Digital Signals
By Terry Bartelt
Learners compare animations of analog and digital data signals. A short quiz completes the activity.
Transformer Action Demonstration
Learners view animations and video clips showing how power is transmitted from one energized coil to another.
DC/AC I: Unit 10 Sample Exam
By Patrick Hoppe
Learners answer eight questions about capacitors. Help pages are available.
Studies show that more than 75 percent of all hydraulic system failures are a direct result of unclean oil. In this interactive object, learners examine the three primary types of hydraulic system filters. A brief quiz completes the activity.
AC Voltage Conversion Problems
By John Rosz, Terry Bartelt
Learners work problems to make conversions between RMS, average, peak, and peak-to-peak AC voltages.
AC Voltage Conversions
In this animated object, learners examine the formulas used to convert peak, RMS, average, and peak-to-peak AC voltages. A brief quiz completes the activity.
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.
Total Impedance of a Parallel Circuit Using Complex Numbers: Practice Problems
Students work six practice problems to determine the total impedance of a parallel circuit.
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.
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