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

Learners examine the speed control circuits in a DC variable speed drive that cause the RPM of a motor to vary. This activity has audio content.

The explanation and use of timing diagrams used in digital electronics to graphically show the operation of various circuits are given.

Learners analyze an emitter-biased npn transistor circuit. A "help" screen is available.

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

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.

In this animated object, learners view the keystrokes on a TI-30XIIS calculator that are required to solve for the instantaneous voltage of a discharging RC circuit.

In this interactive and animated object, learners examine how dc voltages develop across capacitors that are connected in series and in parallel.

In this animated object, learners drag resistors of the proper value into a series circuit to cause a required amount of current to flow. Seven review questions complete the activity.

Introduction of transistor

SI closing activity 2/23/21

Practice and learn vocabulary for argumentative writing.

You'll review and learn biology HSA terms.