1. A galvanometer is an instrument which is used to detect the presence of current in a circuit.
2. If the current in a circuit is zero, the galvanometer will show zero deflection or no deflection.
3. The deflection is either side of the zero mark depending on the direction of the current.
2. If the current in a circuit is zero, the galvanometer will show zero deflection or no deflection.
3. The deflection is either side of the zero mark depending on the direction of the current.