What is an Ammeter?Ammeter DefinitionAn ammeter is defined as a device that measures the electric current in a circuit in amperes.Working Principle of AmmeterAmmeters must have low resistance and inductive reactance to minimize voltage drop and power loss, and they are connected in series to measure current accurately.Classification or Types of Ammeter Permanent Magnet Moving Coil(PMMC) ammeter. Moving Iron (MI) Ammeter. Electrodynamometer type Ammeter. Rectifier type Ammeter.Permanent Magnet Mo