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A sample exam for DC/AC I, unit # 12 is presented to the students. This unit covers transformers.
Sine Wave Fundamentals: Practice Problem #7
By Patrick Hoppe
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.
The TI-86 Calculator: The Square Root Function
Students read step-by-step instructions for determining the square root of a number using the TI-86 calculator.
The Multi-Loop Armature of a DC Motor
By Terry Bartelt
In this animated object, learners study the drawbacks of a single-loop armature of a DC motor and the advantages of a multi-loop armature.
TI-86 Scientific Calculator: The Simultaneous Equation Solver
Students follow step-by-step instructions to learn how to use the SIMULT function on this scientific calculator.
The Reflected Load in a Transformer
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 Action Demonstration
Learners view animations and video clips showing how power is transmitted from one energized coil to another.
DC/AC I: Unit 8 Sample Exam
Students answer five questions concerning magnetism.
DC/AC I: Unit 9 Sample Exam
In this interactive object, learners answer nine questions about inductors.
DC/AC I: Unit 10 Sample Exam
Learners answer eight questions about capacitors. Help pages are available.
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