Question

define antimatter and how many types of antimatter is present in the universe​

Answer 1

Answer:

An 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.

Types of Ammeter

• Permanent moving coil ammeter.

• Moving iron ammeter.

• Electro-dynamometer ammeter.

• Rectifier type ammeter.