Voltage and Current Amplitudes in a Parallel LC Circuit
By Terry Bartelt
In this interactive object, learners examine how voltages and currents vary in a parallel LC circuit as the applied frequency changes.
Gear Nomenclature (Screencast)
By James Bourassa
In this interactive object, learners view various components of gears and read descriptions of them. Learners then identify the location of each of these components in a drag-and-drop exercise.
Series Circuit Analysis Practice Problems: Circuit #6
By Patrick Hoppe
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.
DC/AC I: Unit 2 Sample Exam
In this interactive object, learners work 10 problems covering resistors, voltage, and current.
DC/AC I: Unit 3 Sample Exam
In this interactive object, students answer 10 questions covering Ohm's Law and Power Law.
Graphical BJT/JFET Transistor Biasing
By Roger Brown
Learners use two calculations to prepare a graphical solution to the biasing of bipolar junction transistors and junction field effect transistors. This method eliminates the problem of having to re-calculate the operational Q point when dealing with hard saturation.
The Frequency Generator: Miscellaneous Controls
Learners read a description of the DC offset function, the 50 ohm and 600 ohm output terminals, and the TTL/CMOS output terminal.
Series RL Circuit Practice Problems
By James Bourassa, John Rosz
Students calculate current, phase angle, resistor voltage, inductor voltage, and power.
Transistor Fundamentals: E-MOSFETs, the Ohmic Region
The ohmic region of the E-MOSFET is identified. Formulas are given to determine the proper operation in the ohmic region. An example of circuit analysis is also given.
Sine Wave Fundamentals: Practice Problem #10
In this interactive object, learners determine the Vp, Vp-p, Vrms, Vavg, and the frequency of a sine wave that is displayed on an oscilloscope screen.
Parallel Capacitance
In this learning activity you'll review the steps for determining the total capacitance of a parallel circuit and work practice problems.
Strength of Materials: The Centroid of a Quadrant
By Steve Whitmoyer
In this animated and interactive object, learners calculate the area and centroid of a quadrant.
Impedance: Parallel to Series Conversion
Students view the formulas to be used to convert a parallel impedance to a series impedance.
Current Source Approximations
Learners examine first and second approximations and view examples of a "stiff" current source.
Standard Calibration Procedure
Learners follow steps to calibrate a transmitter used in process control applications. A brief quiz completes the activity.
The DC Motor
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.
Sine Wave Fundamentals: Practice Problem #8
Ohmmeter Measurement Connections
Learners read a step-by-step approach on how to connect an ohmmeter when making measurements in this interactive lesson.
Conductivity
In this animated activity, learners examine the conductivity of a solution and how its properties affect measurements to determine concentration levels. A brief quiz completes the learning object.
Voltage Regulation
In this animated activity, learners examine how the speed of a motor may change if the voltage from the power source fluctuates due to power line irregularities. This lesson has audio content.
What Is Current?
By Tim Tewalt, Patrick Hoppe
Learners study an animation that shows how a battery charge reduces over time and when varying resistance values are placed in a series circuit. Ten review questions complete the activity.
Electrical Generator Basics
In this animated activity, learners examine how a voltage is induced into a conductor when the conductor cuts across magnetic flux lines. They also view the four factors that determine how much voltage is generated. A brief quiz completes the learning object.
Transistor DC Analysis Practice Problems: Circuit #4
Learners analyze an emitter-biased npn transistor circuit. A "help" screen is available.
Total Impedance for Series-Parallel Circuits Using Complex Numbers
Students follow the steps for finding the total impedance for a series-parallel circuit. Several examples are given.
Transistor Fundamentals: JFET Amplifiers
Students read an explanation of the common-source and source-follower amplifiers. Gain formulas are developed and an example is given.