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→Digital Multimeter
It is very important that you plug in the leads (cables, banana jacks, whatever you want to call them) into the correct terminals to make your measurement. The correct input terminals can change depending on what type of measurement you are performing. Failure to choose the correct terminals and set up the measurement properly can result in a blown fuse, damage to the digital multimeter, damage to another benchtop instrument, and/or damage to your circuit. So... read what each terminal is meant for before you start plugging things in willy-nilly.
It is very important that you plug in the leads (cables, banana jacks, whatever you want to call them) into the correct terminals to make your measurement. The correct input terminals can change depending on what type of measurement you are performing. Failure to choose the correct terminals and set up the measurement properly can result in a blown fuse, damage to the digital multimeter, damage to another benchtop instrument, and/or damage to your circuit. So... read what each terminal is meant for before you start plugging things in willy-nilly.
==Common Ground==
Ground (sometimes called neutral or earth) is usually at 0V. Ground acts a reference point for most electronic circuits.