Electricity for Refrigeration, Heating, and Air Conditioning (10th Edition)

Chapter 4

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Ammeter, voltmeter, and ohmmeter are the three ... more

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Nearly every industry nowadays uses electrical ... more

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Ohm's law is the relationship between current, ... more

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The ammeter transfers the magnetic field of the ... more

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The two types of ammeter are Clamp-on ... more

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The reading of the meter will depend upon the ... more

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By wrapping up the coil on the jaws of the ammeter... more

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The exact reading of the meter would not be the ... more

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The voltmeter is used to measure voltage across ... more

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10 ; No equipment can operate exactly at the rated... more

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Select the largest voltage scale at first, and ... more

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An ohmmeter cannot be connected to a circuit when ... more

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Continuity refers to a complete circuit for the ... more

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When a circuit has two separate conductors touch ... more

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When there is a break in the flow of current in ... more

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Consider the following factors before buying ... more

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When a circuit has two separate conductors touch ... more

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Only the ohmmeter has its own power supply but the... more

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In a parallel connection, the voltage remains the ... more

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In a series connection, the current remains the ... more

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In an analog meter, magnetism is used to move the ... more

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Merits of using a digital meter:More durableHighly... more

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Watt's Law is used for the relationship among ... more

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In the analog meter, the accuracy is and in the ... more

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The digit display will show 4 digits but the ... more

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The protection in digital meters is provided by ... more

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Power supply ; The internal circuit of the ... more

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A digital meter is accurate, durable, and easier ... more

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