As you can see in this figure, the pointer or needle is connected to a coil of wire that’s suspended on jeweled bearings. The coil of wire connected to the pointer is placed between two permanent magnets. When a current of the proper polarity is placed on the wire coil, the coil turns an amount of distance that’s proportional to the amount of current in the coil.

In the lower middle of the analog VOM shown, you can see the range selector switch. The range selector switch is used to select appropriate meter ranges and units for the measurements you’re making. So, for example, if you’re measuring voltage and the range selector switch is set to the 10 V setting, you would read your measurements on the 0 V to 10 V scale printed on the meter face. If the range selector switch is turned to the 50 V setting, you would read your measurements on the 0 V to 50 V scale on the meter. In contrast, if you’re measuring resistance and the range selector switch is set to R × 1, the resistance measurement shown on the meter face is the actual resistance. However, if the range selector switch is set to the R × 100 setting, you would need to multiply the resistance reading on the meter face by 100 to get the actual measurement.

	Criado por That Yeti Dog Person mais de 3 anos atrás

Career Diploma Electronics Technician (Module 3 - Basic Electronics (Section 1)) Slides sobre Analog Multimeters (Mod.3 Sect.1 Part 3) , criado por That Yeti Dog Person em 25-03-2021.

Analog Multimeters (Mod.3 Sect.1 Part 3)