Clock Pulse Triggering of Flip-Flops (Screencast)
By Terry Bartelt
This screencast shows the symbols used to represent the type of pulse required at the clock input to activate flip-flops.
DC/AC I: Unit 8 Sample Exam
By Patrick Hoppe
Students answer five questions concerning magnetism.
The Op Amp Integrator
By Terry Fleischman
The learner will understand the circuit configuration and operation of an integrator op amp.
Internal Elements of a 555 Timer (Screencast)
In this screencast, learners examine the internal elements of a 555 IC and their operation.
Parallel Circuit Analysis Practice Problems Part 2
In this interactive object, students work 11 practice problems and solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.
DC/AC I: Unit 4 Sample Exam
In this interactive object, learners answer nine questions about series and parallel circuits. Immediate feedback is provided.
DC/AC I: Unit 2 Sample Exam
In this interactive object, learners work 10 problems covering resistors, voltage, and current.
The TI-83 Plus Calculator: Using the Reciprocal Function for Complex Numbers
Learners examine the correct method for calculating complex reciprocals. The solution for total impedance of a parallel circuit in rectangular form is shown.
DC/AC I: Unit 12 Sample Exam
A sample exam for DC/AC I, unit # 12 is presented to the students. This unit covers transformers.
The TI-86 Scientific Calculator: Using the Reciprocal Function for Complex Numbers
This primer introduces the student to the correct method of using complex reciprocals in a TI-86 calculator. The solution of total impedance of a parallel circuit in rectangular form is shown.
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.
Effects of a Rheostat in a Series Circuit
In this animated object, learners examine how the way in which a rheostat is connected in series with other resistors causes current and voltage to change as the resistance is varied. A brief quiz completes the activity.
Sine Wave Fundamentals: Practice Problem #7
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 Circuit Analysis Practice Problems: Circuit #3
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 by each resistor.
Rotating Vector Representation of the Sine Function
The learner will be able to represent steady-state AC sinusoidal signals using phasors, which will lead to a simplified technique of analyzing AC circuits in a very similar way that we analyze DC circuits.
Sine Wave Fundamentals: Practice Problem #10
Discharging Time Constants of an RC Circuit (Screencast)
In this animated object, learners examine how current, voltage and the discharging capacitor of a series RC changes during 5 time constants. A brief quiz completes the activity.
Sine Wave Fundamentals: Practice Problem #6
DC/AC I: Unit 9 Sample Exam
In this interactive object, learners answer nine questions about inductors.
Op Amps 4: The Op Amp Buffer
By Todd Van De Hey
Understand the op-amp buffer configuration and calculate basic circuit impedance.
Pulse Train Fundamentals: Practice Problem #5
In this interactive object, learners determine the pulse width, period, duty cycle, and frequency of a waveform.
Parallel LC Circuit Tic-Tac-Toe 2
By playing a game of tic-tac-toe, a student can review what happens to currents and voltages throughout a parallel LC circuit when the applied frequency is increased above resonance.
Series Circuit Analysis Practice Problems Part 2
In this interactive object, learners solve additional problems involving total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.
Sine Wave Fundamentals: Practice Problem #9
Inductive Reactance Practice Problems
Students solve problems on the determination of total inductive reactance of series-parallel inductors.