This primer introduces the student to the half-wave rectifier. Both the 1st and 2nd approximations are examined.
Parallel Circuit Analysis Practice Problems: Circuit #9
By Patrick Hoppe
In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.
Kirchhoff's Voltage Law with Complex Numbers
Learners view a demonstration of Kirchhoff's Voltage Law using complex numbers for an ac circuit.
Voltage Sources in Parallel
By Terry Bartelt
The effect of connecting voltage sources in parallel to increase amperage to a load is presented.
Photoelectric Reciprocation Circuits
This animated lesson shows how a photoelectric sensor, connected to a ladder circuit, causes the cylinder of a hydraulic circuit to extend and retract.
This learning object introduces the three approximations of a diode.
The Sine Wave
Using text and graphics, this learning activity describes a sine wave, including alternations, cycles, time, amplitude, and degrees
The Generation of Alternating Current
This learning object describes the production of an alternating current in a generator with a single-loop armature. An illustration of how a sine wave is produced is shown through animation.
Mathematical Expression of an AC Sine Wave
Students view the mathematical expression of an AC waveform with respect to time (t) and read about the different components of this expression.
The Mathematical Expression of an AC Sine Wave As a Function of Time: Practice Problems
Students view the mathematical expression of a sinusoidal waveform with respect to time (t) and solve five problems. The answers are provided so students may check their work.
The squid and broken ship: Waves
You broke a fisherman's ship and now you have to fish up some squids in return! Those squids are interested in waves. Try to tell them something about waves, and fish it up when it is busy thinking.
Characteristics of Waves
Guide the snake and avoid it biting you!
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