Converting a galvanometer to an ammeter involves connecting a low-resistance wire (called a shunt) in parallel with the galvanometer, allowing it to measure larger currents by diverting most of the current through the shunt while protecting the delicate galvanometer coil, which is essential for measuring total current in a circuit without altering the original flow. This modified device, connected in series with the circuit, uses a calibrated scale (in Amperes) to show the actual current, with the shunt’s value calculated to set the desired current range (I).
Description
Converting a galvanometer to an ammeter involves connecting a low-resistance wire (called a shunt) in parallel with the galvanometer, allowing it to measure larger currents by diverting most of the current through the shunt while protecting the delicate galvanometer coil, which is essential for measuring total current in a circuit without altering the original flow. This modified device, connected in series with the circuit, uses a calibrated scale (in Amperes) to show the actual current, with the shunt’s value calculated to set the desired current range (I).
