To do a capable job of repairing electrical equipment, electricians must have a thorough knowledge of how it operates. Covers basic method of measuring current, voltage, resistance. Covers differences between DC and AC circuits. Electrical Measuring Instruments Covers the principles on which electrical test instruments operate.
Basic instruments covered include voltmeter, ammeter, wattmeter, ohmmeter, and megohmmeter.
Includes detailed coverage of modern multimeters. Explains functions and uses of oscilloscopes. Explains the importance of grounding. Describes many kinds of fuses, circuit breakers, and motor protection devices and their uses. Types of DC generators.