Resistor Color Code Practice
By Patrick Hoppe
In this learning activity you'll build a resistor's color code based on the bands.
Voltage Divider Rule Practice Problems
Learners review the VDR and work six problems. Immediate feedback is given.
Parallel Capacitance: Practice Problems
Learners solve six problems determining the total capacitance of a parallel circuit. Immediate feedback is provided.
RL Time Constant
Learners read an explanation of the RL time constant and examine the formula for calculating the instantaneous current value. The current is graphed as it climbs to maximum or drops to zero. Note* In the formulas in this module, the Greek letter epsilon should be the mathematical constant 'e'.
Noninverting Op Amp
By Terry Bartelt
In this animated object, learners examine the fundamental operation of a noninverting operational amplifier. A brief quiz completes the activity.
Electromagnets
Learners examine how an electromagnet is formed. Animated illustrations show current running through a coil wrapped around an iron core.
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.
Series Capacitance
Students view the steps for determining the total capacitance for a series circuit. They then work practice problems.
Energizing Time Constants of an RL Circuit
In this animated object, students view an explanation of how current, voltage, and the magnetic field strength of a series RL circuit change during five time constants. A brief quiz completes the activity.
Inductors in Parallel
Learners examine the process for determining the total inductance of a parallel circuit. They then complete practice problems.
Series Inductance
In this learning activity you'll calculate the total inductance of a series circuit.
RC Time Constant
By Tim Tewalt, Patrick Hoppe
In this animated object, learners observe the voltage on a capacitor at various time constants when it either charges or discharges. Students then answer questions in the categories of Identify, Compare, and Compute.
Capacitive Reactance Practice Problems
Students solve problems on the determination of total capacitive reactance of series-parallel capacitors.
Inductive Reactance Practice Problems
Students solve problems on the determination of total inductive reactance of series-parallel inductors.
Resistor Color Code Description
In this interactive activity, students read about the colored stripes on a resistor and interpret the placement of those colors to determine the value of four-band resistors.
Series RLC Circuit Tic-Tac-Toe 1
By playing a game of tic-tac-toe, a student can review what happens to currents and voltages throughout a series RLC circuit when the applied frequency is increased from 0 Hz towards resonance.
Voltage Drops in a Series Circuit
Students study the concept that the voltage drop across a series circuit resistor is proportional to its resistance. They then complete a brief quiz.
Series-Parallel Practice Problems Circuit 4
In this interactive object, learners work 12 problems dealing with dc circuit analysis.
Series-Parallel Circuit Analysis Practice Problems: Circuit 3
In this interactive object, learners solve a series-parallel DC circuit analysis problem. Immediate step-by-step feedback is given.