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Students answer five questions concerning magnetism.
The Reflected Load in a Transformer
By Terry Bartelt
Learners examine how the load resistance connected to the secondary coil of a transformer affects the primary current. A brief quiz completes the activity.
The Electrician's Wheel of Laws Quiz
By James Bourassa
Learners test their knowledge of the variations of Watt's Law and Ohm's Law with this quiz.
In this animated object, learners examine the operation of an optocoupler, specifically how it is connected to external components to provide interfacing and isolation and how it responds to excessive frequencies. A quiz completes the activity.
Transistor DC Analysis Practice Problems: Circuit #4
By Patrick Hoppe
Learners analyze an emitter-biased npn transistor circuit. A "help" screen is available.
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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