Analog multimeters are the oldest of the multimeters. It has a needle that rotates along the scale, but it is difficult to read. The advantage is that it is cheap and responsive. Analog multimeters are more sensitive than digital multimeters and can sense even small changes in readings.
An analog multimeter is made of a coil placed between two permanent magnets, with a needle placed on top of the coil. When current is passed through the coil, the coil generates a magnetic field that interacts with the magnetic field of the permanent magnet, thus rotating. As the coil rotates, the pointer moves along the scale. The angle of rotation of the coil depends on the amount of current flowing through the coil. So an analog multimeter is also called a galvanometer, which has very little resistance and is therefore more sensitive than a digital multimeter. But be careful to avoid full scale deflection (FSD). When the current goes beyond the deflection of the coil, it starts to burn the coil, causing damage to the meter.
