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What is a Multimeter? Multimeter is a combination of different kind of testing meters including an ammeter, ohmmeter and voltmeter which helps to detect the correct operation or failure of various types of components. Multimeter consists of an analog or digital display, 2 probes and a selector switch. Multimeters are used to measure resistance, amperes and voltages. Beginners should prefer auto-ranging digital multimeters than buying analog multimeters for safety purposes. How to use a multimeter safely? Multimeters should not be used over maximum voltages mentioned in the multimeter. Filter capacitors in power supplies should be discharged before testing. Disconnect the input power before making resistance or diode test. Don’t attempt to repair or service the multimeter. Don’t touch the metal probes , while testing for currents and voltages. Always turn off the power and disconnect the probes before replacing the batteries or fuse in multimeters. A computer will not...