Students view the formulas to be used to convert a parallel impedance to a series impedance.

Students view the formulas to be used to convert a series impedance to a parallel impedance.

Learners examine the impedance matching capability of a transformer and how to select the proper turns ratio to achieve this function. A brief quiz completes the activity.

Students solve five problems to determine the total impedance of a series-parallel circuit. Immediate feedback is given.

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

Learners consider why an impedance matching transformer is needed to connect an antenna to a television.

Students view several examples of how to determine the total impedance of a series circuit. The "j" term is used in all of 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.

In this interactive object, students calculate capacitive reactance, phase angle, impedance, and power in series RC circuits.

Students calculate current, phase angle, resistor voltage, inductor voltage, and power.

In this animated object, learners view the operation of an open-collector inverter with and without a pull-up resistor.

Students solve practice problems on voltage, current, and impedance matching. Examples precede the problems.

Learners explore the use of complex numbers through a series AC circuit analysis problem. The steps are compared to the graphical method of finding circuit impedance and the phase angle.

In this interactive object, students calculate capacitive reactance, impedance, current, and power in parallel RC circuits.

In this teaching and learning aid, the user can alter circuit variables and view how these changes affect circuit voltage, current, reactance, impedance, and phase angle.

The current-to-voltage conversion of the transresistance amplifier is examined. The formulas for output voltage and impedance are defined and an example ties the concepts together.

Learners alter circuit variables and view how these changes affect circuit voltage, current, reactance, impedance, and phase angle.

Understand the op-amp buffer configuration and calculate basic circuit impedance.