#
Voltmeter

The voltmeter is a device that can measure the voltage (or difference in electrical potential) between two points, the size of which is the unit of measurement is the volt (V).

The vast majority of today's measuring devices are built around a digital voltmeter, with the physical size to be measured converted to voltage using an appropriate sensor.

This is the case with the digital multimeter, which, in addition to offering the voltmeter function, has at least one voltage current converter to operate it as an ampmeter

Ammeter

An ampmeter is a device that measures the intensity of an electrical current in a circuit. The unit of measurement is the ampere, symbol : A.
There are several types : - analog ampsmeters - digital ampsmeters - special ampsm......

The ohmmeter

An ohmmeter is an instrument that measures the electrical resistance of an electrical component or circuit.
The unit of measurement is the ohm, denoted Ω. Two methods can be used to measure the value of a resistance :
- Measurement of a voltage with a current generator.
- Measurement of a current with a voltage generator (or D.......