Students work five practice problems to determine the Thevenin resistance of DC circuits.

In this interactive and animated object, learners examine the construction of a 7493 IC as mod-2 and mod-8 up-counters. They view how this binary counter can be modified to operate at different modulus counts. A quiz completes the activity.

Users read work instructions and view a drawing and calculations for turning on a lathe using a digital readout.

This review tests the student's knowledge of advanced cutting tools and operations on a drill press.

Learners read how an inductor opposes a current change when it begins to energize and when it begins to de-energize. A short quiz completes the activity.

Students read how to determine the total impedance of a parallel circuit using complex numbers. The "J" term is used in the calculations.

Students solve six problems for series impedance using complex numbers. Immediate feedback is given.

Students work six practice problems to determine the total impedance of a parallel circuit.

Students follow the steps for finding the total impedance for a series-parallel circuit. Several examples are given.

Test your knowledge of multimedia acronyms commonly used in the computer industry.

Converting hexadecimal, binary and decimal numbers.

Digital Divide - Internet and Net Geners of the Net generation.