Answer :
An analog meter displays readings through a needle movement on a dial face, with the underlying mechanism being a galvanometer which causes the needle to deflect proportionally to electric current due to magnetic forces.
An instrument that displays readings through a needle's movement across a dial face is termed an analog meter. These meters are essential tools in various fields for measuring quantities such as voltage, current, or other physical variables. Analog meters feature a needle that swivels across a marked gauge, pointing to numbers on a scale that correspond to the measurement being taken.
The core component of most analog meters is a device known as a galvanometer, indicated by the letter G. When current flows through this device, denoted by IG (Galvanometer Current), it results in a proportional needle deflection. This deflection occurs due to the force exerted by a magnetic field on a wire that is carrying electrical current. The needle's position provides a visual representation of the measurement's magnitude.
Complete question is : How would you describe an instrument that displays readings through a needle's movement across a dial face?
