In this animated activity, learners examine how ground fault circuit interrupters work and why they are an important safety feature.
In this animated lesson, students read an analogy comparing water in a "special" water tank to the current "flow" through a capacitor.
In this interactive and animated object, learners examine the flow of electron current into and out of hot and neutral sockets during each alternation of an AC waveform. A brief quiz completes the activity.
In this animated object, learners examine the design of a ladder circuit that provides manual control to a water pumping system. Students also study modifications to the circuit as the complexity of the system increases.
Learners follow the steps for reducing all of the elements of a complex circuit to a single current source and a single source resistance to create a simple circuit. Several examples are given for dc circuits. The conversion between Thevenin and Norton is also presented.
Learners examine the internal parts of a DC electrical motor and then text their knowledge in a drag-and-drop exercise.
In this interactive object, learners follow steps to find phase voltages in a partial three-phase power distribution circuit.
The superposition theorem is explained as it relates to dc circuit analysis. Examples are given.
In this animated activity, learners view the seven steps that are used to calculate voltage and current values throughout a common-emitter transistor amplifier.
In this interactive and animated object, learners examine orthographic projection and the Glass Box Theory. Front, side, and top view development is demonstrated with pictorial views of each object to help develop 2D to 3D visualization skills.
Learners examine the drawing symbols used for counterbore, countersink, spotface, radius, diameter, and depth. In the quiz that completes the activity, they associate these symbols with machining applications.
Learners work problems to make conversions between RMS, average, peak, and peak-to-peak AC voltages.
In this learning activity you'll identify abbreviations that represent quantities associated with electrical circuits.
In this animated activity, learners study how the magnetic field of an armature can distort the DC motor's main magnetic field. A brief quiz completes the object.
Students follow the steps that are required to select a transformer with the proper ratings. Voltage, frequency, current, and KVA are considered.
Learners follow a methodical approach for the dc analysis of series-parallel circuits.
Students review the Voltage Divider Rule and work practice problems.
Learners examine the operation of a DC Shunt motor and its characteristics. A quiz completes the activity.
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.
In this animated activity, learners examine the operation of hydraulic directional control valves and the internal components that divert the fluid.
Learners study the interaction between the conductors of the stator and the armature inside a DC motor, which causes the shaft to rotate. A short quiz completes the activity.
Learners view the operation of an NPN transistor in the active region.
The learner views the operation of a transistor switching from saturation to cutoff. A brief quiz completes the activity.
The learner will apply the three formulas used to find the total resistance of three types of parallel resistor circuit configurations.
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.