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Synopsis

A simple to use quick reference guide to basic electrical formulae, containing worked examples of how to find Reactance, Impedance, Resistance, Voltage, Reactance, Apparent & True Power, Horse Power and Current in ac/dc circuits, for both single and three phase wiring systems.

How the properties of triangles can be used when making calculations.

Also includes a brief guide to Power Factor, Volt Drop and sizing of cables.

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