👉 A galvanometer is a type of electronic device that measures current. It consists of two parallel wires, one carrying positive charge and the other negative charge, which are separated by a distance between them. The resistance of these wires determines the voltage across them, causing an electric field to develop in the wire with positive charge and opposite to the direction of motion of electrons passing through it. The galvanometer is commonly used in measuring currents in various applications such as measuring electrical power, monitoring battery voltages