HVAC Excellence Study Guide) for Electric Test Questions And Answers
HVAC Excellence Study Guide) for Electric Test Questions And Answers Law of electric states that: - ANS Like charges repel, and opposites attract When testing a supply voltage a maximum variation allowed is typically: - ANS plus or minus five percent A Voltage Tester reads zero when there is: - ANS no potential difference An Ammeter - ANS Is used to measure the quantity and intensity of electrons flowing inside a wire, or through a load When will an ammeter have an indication/reading of zero. - ANS When it is clamped around two wires feeding a load device, the magnetic fields will cancel each other out. Resistance: - ANS refers to anything that offers opposition to the flow of electrons. A circuit without resistance to control the electron flow is considered: - ANS shorted Reading a VOM (Volt-ohm-meter) the diff
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hvac excellence study guide for electric test
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