Electricity: Fundamentals of Alternating Current (Module 8)
In this lesson we will study the nature and composition of alternating current. You will be able to explain alternating current and explain sine waves.
This course is intended to provide students and practicing technicians with safety information and knowledge related to personal protective equipment. This course is not intended as a sole source of training for HVACR technicians.
CEH 3 CEU 0.3
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Electricity for HVACR Technicians Full Course
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Electricity: Relays, Contactors and Starters (Module 7)
CourseA relay is an electrical switch. It opens and closes under the control of a separate electrical circuit. This topic will explain the workings of a relay.
$55
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Electricity Alternating Current: Reactance, Impedance, & Power Factor (Module 9)
CourseDifferent components of a circuit create opposition to alternating current in different ways. In this topic, you will learn to calculate the resistance offered by capacitors and inductors.
$55
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Electricity: Circuit Protection Devices: Fuses (Module 10)
CourseWhen you have completed this lesson you will be able to discuss the conditions under which protection is needed, and describe the different types of fuses.
$55