Half-Wave Rectifier
By Patrick Hoppe
This primer introduces the student to the half-wave rectifier. Both the 1st and 2nd approximations are examined.
Hexadecimal Numbering System
In this learning activity you'll review the hexadecimal numbering system.
How Adding Parallel Branches Decreases Total Resistance
By Terry Bartelt
In this animated object, learners follow an analogy of water flowing through pipes and valves to see how resistance decreases in a parallel circuit as branches are added.
How Adding Parallel Branches Increases Total Current
In this animated object, learners follow an analogy of water flowing through pipes and valves to see how current increases in a parallel circuit as branches are added.
How Current Requires Voltage
This learning activity uses a water pressure analogy to present the concept that voltage pressure is required to cause current flow.
How Metal Detectors Operate
Learners examine how metal detectors function. This object includes animation and sound.
Ideal Filters
Students read about the ideal versions of the four common filters (low-pass, high-pass, bandpass, and notch), and view graphical representations of the filters' frequency characteristics.
Identifying Engineering Notation
By Ron Wallberg
The learner will represent very large and very small numbers in engineering notation.
Identifying the Number of Significant Digits
Learners will identify the number of significant digits in practice problems.
Ignition System of a Combustion Engine
Students view the parts and movements of a combustion engine in this animated activity. Each part is described.
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.
Impedance: Parallel to Series Conversion
Students view the formulas to be used to convert a parallel impedance to a series impedance.
Impedance: Series to Parallel Conversion
Students view the formulas to be used to convert a series impedance to a parallel impedance.
Inductance
This learning activity describes the physical properties that affect the inductance, in henries, of an inductor.
Inductive Reactance
Students read an introduction to inductive reactance and view examples.
Inductive Reactance Demonstration 1
Learners view video clips showing how coiled wire provides more resistance to AC current flow than uncoiled wire.
Inductive Reactance Demonstration 2
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.
Inductive Reactance Practice Problems
Students solve problems on the determination of total inductive reactance of series-parallel inductors.
Inductor Series - Parallel: Practice Problems
Students complete 10 practice problems.
Inductors
This learning activity describes the abilities of an inductor coil to oppose alternating current and to pass direct current.
Inductors (Description and Examples)
Learners read a description of inductors and view examples of inductors in series and in parallel.
Inductors in Parallel
Learners examine the process for determining the total inductance of a parallel circuit. They then complete practice problems.
Instantaneous Current Calculations of a De-Energizing RL Circuit (Using a TI-36X Calculator)
Students view a sample of the keystrokes used on a TI-36X calculator to solve for the instantaneous current of a de-energizing circuit.
Instantaneous Current Calculations of an Energizing RL Circuit (Calculator TI-30XIIS)
Students view the keystrokes of a TI-30XIIS calculator that are required to solve for the instantaneous current of an energizing RL circuit.
Instantaneous Current Calculations of an Energizing RL Circuit (Using a TI-36X Calculator)
Learners view a sample of the keystrokes on a TI-36X calculator that are required to solve for the instantaneous current of an energizing RL circuit.