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Learners analyze an emitter-biased npn transistor circuit. A "help" screen is available.
Series RC Circuit Practice Problems
By James Bourassa, John Rosz
In this interactive object, students calculate capacitive reactance, phase angle, impedance, and power in series RC circuits.
Current Source Approximations
By Patrick Hoppe
Learners examine first and second approximations and view examples of a "stiff" current source.
Transistor Fundamentals: Voltage-Divider Biased NPN Transistor
Students view drawings of the dc analysis of a voltage-divider biased NPN transistor.
Analog Position Control
By Terry Bartelt
In this animated object, learners examine an analog closed-loop feedback system that uses potentiometers to control the position of a gear rack.
Parts of Speech in Sentences: The Order of Operations
By David Hardgrove
Learners identify the parts of speech by following a certain order until each word in a sentence is labeled. In a variety of exercises, learners practice finding verbs, prepositional phrases, subjects, nouns, pronouns, adjectives, adverbs, and conjunctions.
Reading and Interpreting Bar Graphs
By Francine Nettesheim
In this learning activity you'll identify the various parts of a bar graph, read and interpret its data, and calculate the data to solve various application problems.
Financial Statement Analysis
By Lynette Teal
Learners read the definitions of working capital, current ratio, quick ratio, return on equity, accounts receivable turnover, and inventory turnover.
Cash Basis Accounting
By Julie Dilling
In this interactive object, learners read a brief summary of the principles of cash basis accounting and then check their knowledge of transactions in a drag-and-drop exercise.
Oscilloscope: DC Voltage Measurements
Learners follow step-by-step instructions for using an oscilloscope to measure DC voltages.
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Give your new group a name.