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Appendix K: Using a Mutimeter

A multimeter can be used as an ammeter to measure current, as a voltmeter to measure potential difference, and as an ohmmeter to measure resistance. It can measure both AC and DC currents and voltages. To avoid damaging the multimeter and other components in a circuit, it is critical to use the correct setting for the kind of measurement you will be making.
Figure 1

Figure 1: A typical multimeter

Using the multimeter as a voltmeter

Using the multimeter as an ammeter