Ammeter is a device used to measure strong electric current. This tool is generally used by electronics technicians in the electrical appliance tester called multi avometer combination of functions ammeters, voltmeter and ohmmeter.
Ampere meter can be made on the composition mikroamperemeter and shunt functioning on the current detection circuit for either a small current, while for large currents ditambhan the shunt resistance.
Ammeters work according to the Lorentz force magnetic force. Current flowing in the coil's magnetic field would lead to blanket the Lorentz force which can move the needle ammeters. The greater the current flow, the greater the deviation.