This animated lesson shows the operation and characteristics of thru-beam optical sensors.
Superposition Theorem with Complex Numbers
By Patrick Hoppe
Students read an explanation of "superposition" as a technique for ac circuit analysis. Complex numbers are used.
Charging Time Constants of an RC Circuit (Screencast)
By Terry Bartelt
In this animated object, students view an explanation of how current, voltage, and the charge on a capacitor of a series RC circuit change during five time constants. A short quiz completes the activity.
Transistor DC Analysis Practice Problems: Circuit #1
Learners analyze a base-biased npn transistor circuit. A "help" screen is available.
Series-Parallel Practice Problems Circuit 4
In this interactive object, learners work 12 problems dealing with dc circuit analysis.
Capacitive Probe Sensors
Learners study the operation of capacitive probe sensors used to measure levels in a tank.
Conductive Probe Sensors
In this animated object, learners study how conductive probe sensors are used to measure conductive liquid in a container.
Displacement Level Sensors
In this animated object, learners study how displacement level sensors are used to measure the level of liquid in a tank.
In this animated object, learners observe the operation of a J thermocouple with a cold junction. A table is used to convert the voltage it produces to a corresponding temperature. A brief quiz completes the activity.
Resistance Temperature Detector (RTD)
Learners study animations to see the connection between temperature and resistance as they examine the operation of an RTD. A table is used to convert resistance readings to the corresponding temperatures. A brief quiz completes the activity.
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