Learners study animated rheostat settings that show how current flow is inversely proportional to resistance. Ten review questions complete the learning object.

Students view drawings of the emitter resistor bypass capacitor.

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.

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.

This learning object shows the symbols used to represent the type of pulse required at the clock input to activate flip-flops.

In this animated object, learners examine three different types of multivibrators: astable, monostable, and bistable. A brief quiz completes the activity.

Learners examine an animated motion-controlled robotic arm and observe the operation of a PID (Proportional-Integral-Derivative) control that makes movements quickly without overshooting or having a steady-state error. This activity has audio content.

Learners read how to set up a TI-86 calculator. The process is demonstrated and examples are given.

The learner examines the setup process of a TI-83 Plus calculator. The process is demonstrated and examples are given.