Learners compare the three scales used in pressure measurements: gage, absolute, and vacuum. A brief quiz completes the activity.

Learners examine the operation of an inductive proximity sensor in this animated object. A brief quiz completes the activity.

Students view a dc analysis of an emitter-biased NPN transistor.

In this interactive object, learners examine sectional views used in engineering drawings. The sections shown are full, half, offset, aligned, revolved, and broken-out. Learners match drawings of sectional views with the names of the views.

Students solve problems on the determination of total inductive reactance of series-parallel inductors.

In this animated lesson, learners examine sine waves and alternating current. A brief quiz completes the object.

In this animated object, learners examine cycles, frequency, Hertz, wavelengths, and periods. A brief quiz completes the activity.

Students solve problems on the determination of total capacitive reactance of series-parallel capacitors.

Learners work problems to make conversions between RMS, average, peak, and peak-to-peak AC voltages.

You'll practice defining terms relating to cylinders and identifying parts of cylinders.