The tangent galvanometer is an indispensable instrument for physics laboratory experiments, particularly in the study of electricity and magnetism. This precision device measures the flow of electric current by utilising the principle of electromagnetic induction. The tangent galvanometer consists of a circular coil of wire suspended within a strong magnetic field, allowing it to rotate freely on a vertical axis. When an electric current passes through the coil, it creates a magnetic field that interacts with the external magnetic field, causing the coil to deflect. By measuring the angle of deflection, the magnitude of the current can be determined with high accuracy. This instrument is widely used in educational institutions and research facilities to conduct experiments on Ohm's law, the measurement of resistance, and the study of magnetic fields. With its robust construction and precise calibration, the tangent galvanometer ensures reliable and consistent results, making it an essential tool for hands-on learning and scientific exploration in the field of physics.
