Checking the bottom utilizing a multimeter is an important talent for electricians and householders alike. A multimeter measures electrical properties similar to voltage, present, and resistance. When checking the bottom, you might be measuring {the electrical} connection between a circuit and the earth. This connection is necessary for security, because it supplies a path for extra electrical energy to stream away from the circuit and into the bottom.
There are two predominant methods to verify the bottom with a multimeter. The primary methodology is to make use of the continuity setting. To do that, join one lead of the multimeter to the bottom terminal of the circuit and the opposite result in a recognized good floor, similar to a steel water pipe. If the multimeter beeps, then the circuit is correctly grounded.