Learners study animation showing the operation of cumulative and differential DC compound motors. A short quiz completes the activity.

Learners examine a general approach to solving for the current through, the voltage across, and the power dissipated by each resistor in a series DC circuit. A three-resistor series circuit is used as an example.

Students answer five questions concerning magnetism.

Learners view animations showing how to change the connections to cause a DC motor to reverse its rotation. A short quiz completes the activity.

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

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

Learners examine the internal parts of a DC electrical motor and then text their knowledge in a drag-and-drop exercise.

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

Learners analyze a base-biased npn transistor circuit. A "help" screen is available.

In this learning activity you'll determine the total resistance in a DC parallel circuit.

Learners follow a methodical approach for the dc analysis of series-parallel circuits.

Learners examine the operation of a DC Shunt motor and its characteristics. A quiz completes the activity.

Learners follow step-by-step instructions for using an oscilloscope to measure DC voltages.

Learners study how a circuit converts the AC output of a linear voltage differential transformer (LVDT) into variable DC voltage. It is recommended that learners view the learning object IAU7807, “The LVDT: A Linear Voltage Differential Transformer in Action” before going through this object.

In this animated object, learners study the drawbacks of a single-loop armature of a DC motor and the advantages of a multi-loop armature.

In this learning activity, learners will learn to calculate the average voltage produced by half-wave and full-wave rectifiers.

Learners examine the wiring of the primary components of the three types of DC motors, series, shunt, and compound. The operational characteristics of each type of motor are described. A quiz completes the activity.

Learners analyze a base-biased npn transistor circuit. A "help" screen is available.

The approach to dc circuit analysis is presented to the learner. The approach is demonstrated for the student.

Learners examine the connections of a DC motor and how the terminals are labeled. A matching exercise completes the learning object.