Answer :
Final answer:
An ammeter is a device used to measure and regulate the amount of current flowing through equipment, with analog versions using a galvanometer to provide a needle-based readout and digital ones showing numerical values.
Explanation:
A device that indicates the amount of current flowing through equipment and allows you to regulate the amount with a dial or knob is called an ammeter. An ammeter is designed to be connected in series with the circuit component whose current is being measured. The main component of an analog ammeter is a galvanometer, which consists of a coil of wire with a small resistance positioned in a magnetic field. When current flows through this coil, the coil rotates slightly and causes a needle to deflect, which is read against a numbered scale offering a visual representation of the current flow.
Digital meters provide a different approach, utilizing an analog-to-digital (A to D) converter to express the current as a digital readout. Unlike voltmeters, which measure voltage and are connected in parallel with the circuit component, ammeters provide insights into the flow of electric charge and use different internal components for accurate measurements.
