ammeter (from Ampere Meter) is a measuring instrument used to measure the current in a circuit. Electric currents are measured in amperes (A), hence the name. Instruments used to measure smaller currents, in the milliampere or microampere range, are designated as milliammeters or microammeters. Early ammeters were laboratory instruments that relied on the Earth's magnetic field for operation. improved instruments were designed which could be mounted in any position and allowed accurate measurements in electric power systems. It is generally represented by the letter 'A' in a circuit.
No comments:
Post a Comment