Half-Wave Rectifier
By Patrick Hoppe
This primer introduces the student to the half-wave rectifier. Both the 1st and 2nd approximations are examined.
The Op Amp Integrator
By Terry Fleischman
The learner will understand the circuit configuration and operation of an integrator op amp.
Series-Parallel Circuit Analysis Practice Problems: Circuit 10
Learners examine a series-parallel circuit and solve 14 problems related to voltage, current, and power. A help screen is provided.
Instantaneous Current Calculations of an Energizing RL Circuit (Calculator TI-30XIIS)
By Terry Bartelt
Students view the keystrokes of a TI-30XIIS calculator that are required to solve for the instantaneous current of an energizing RL circuit.
Truth Tables (Screencast)
Instructions on how to use and construct a truth table for digital devices are provided.
Transformer Action Demonstration
Learners view animations and video clips showing how power is transmitted from one energized coil to another.
Ohm's Law Practice Problems #4
Learners review Ohm's Law and work 12 problems. In each of the problems, students are given two of the three variables (voltage, resistance, or current) and are asked to solve for the third.
Boolean Theorems (Multivariable)
Students read the multivariable theorems and view the graphic depictions of the Boolean expressions.
Inverters
In this learning activity you'll describe the operation of a logic inverter using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.
Transistor Fundamentals: Review of Logarithms
Students review logarithms as they pertain to electronics.
Kirchhoff's Voltage Law
Students read a definition of Kirchhoff's Voltage Law and view examples of its use.
Inductor Series - Parallel: Practice Problems
Students complete 10 practice problems.
Instantaneous Voltage Calculations of a Discharging RC Circuit (Using a TI-30XIIS Calculator)
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.
Pulse Train Fundamentals: Practice Problem #3
In this interactive object, learners determine the pulse width, period, duty cycle, and frequency of a waveform.
Light-Emitting Diodes (LED)
Students read about light-emitting diodes, including LED voltage and current, and how to protect against reverse voltage.
The Reflected Load in a Transformer (Screencast)
Learners examine how the load resistance connected to the secondary coil of a transformer affects the primary current. A brief quiz completes the activity.
Transformer Practice Problems
Students solve practice problems on voltage, current, and impedance matching. Examples precede the problems.
Parallel Capacitance: Practice Problems
Learners solve six problems determining the total capacitance of a parallel circuit. Immediate feedback is provided.
Total Impedance of a Series Circuit Using Complex Numbers: Practice Problems
Students solve six problems for series impedance using complex numbers. Immediate feedback is given.
Pulse Train Fundamentals: Practice Problem #1
The TI-86 Calculator: Using the Reciprocal Key
The use of the reciprocal key on the TI-86 scientific calculator is demonstrated in the solution of parallel resistors.
Impedance Matching
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.
Transistor Fundamentals: AC Model Equations
Students view the equations used to determine the ac parameters of the transistor circuit.
The Triac
Learners study the fundamental operation of a triac, particularly how it is turned on and off. A brief quiz completes the activity.
Powers of Ten: The Proper Use of Symbols (Screencast)
Students read about the six common terms used to represent the powers of ten in the field of electronics and complete two matching exercises.