Learners examine the operation of an inductive proximity sensor in this animated object. A brief quiz completes the activity.

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

Learners review the three formulas for power and work 12 problems. In each of the problems, students are given two of the three variables (voltage, resistance, or current) and asked to solve for power. Immediate feedback is provided.

Students work practice problems in which the total resistance of the circuit is calculated. Feedback is provided.

Learners apply the Law of Cosines to determine forces using a TI-36X calculator in this animated object.

Learners study the method of using more than one track and quadrature modes to improve the resolution of an optical encoder. A brief quiz completes the activity.

In this animated lesson, students view how an oscilloscope and a DC voltmeter measure the voltage of a half-wave rectifier.

Students learn how to predict how circuits will respond to varying frequency. They solve for the magnitude and phase angles.

In this animated object, learners view the keystrokes on a TI-35X/36X calculator that are required to solve for the instantaneous voltage of a discharging RC circuit.

Learners view practical examples of how a Hall-effect sensor is used.

This primer introduces the student to the key terms and concepts associated with the silicon diode.

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

In this interactive and animated object, learners examine the operation of a semiconductor diode when it is forward and reverse biased. A brief quiz completes the activity.

Students work practice problems to calculate the total resistance of a circuit. Feedback is provided.

In this animated activity, learners examine how cavitation occurs in a hydraulic pump. A video clip is included. Learners then test their knowledge in a brief quiz.

In this interactive object, learners examine how hydraulic oil is contaminated, the types of damage contamination can cause, and the methods used to clean the oil.

In this animated object, learners examine the operation of a pneumatic directional control valve using air pilot lines.

In this animated object, learners examine how a coil of wire provides more resistance to AC current flow than an uncoiled wire. This learning object contains audio.

Learners read a description of the knob controls, pushbuttons and output terminals on the Wavetek Model 25 signal generator.

Learners examine the concept of the RC time constant. The instantaneous voltage across the capacitor is calculated.

Learners observe how an optical pyrometer is used to take temperature measurements without making physical contact with the object being measured.

Learners view animations showing methods of measuring the pH level of a solution using litmus paper and electronic instruments.

In this animated object, learners examine formulas for displacement and velocity ratios. They also view examples and calculate velocity and the velocity ratio.

Learners examine the conventional current flow at a PLC input module, along with the field devices connected to it. This interactive object includes quiz questions and feedback.

Learners consider the changes inside a series motor that could cause it to break apart if the load was disconnected. A quiz completes the activity.