In the neutral point topic , what is the orientation of the magnet?
The orientation of the magnet here with respect to earth's magnetic field is the magnet is perpendicular to the earth's magnetic field.
Is ammeter a low-resistance galvanometer? Explain.
No, an ammeter is not a low-resistance galvanometer. An ammeter is an instrument used to measure electric current, while a low-resistance galvanometer is a device used to detect small electric currents. The two instruments measure different parameters and thus require different designs. An ammeter typically has a very low resistance, while a low-resistance galvanometer has a much higher resistance.