Tangent Law And Galvanometer - Questions and Answers

26. For a short placed across the arms of deflection magnetometer in tan B position

27. In Tan A position of null deflection method of comparing the magnetic moments of bar magnets, the ratio of their moments is given by

28. The deflection of magnetic needle produced by two short magnets are 30° and 60° respectively when the magnets are placed at the same distance along the ration of their magnetic moments is

29. In Tan A position, a short bar magnet placed at a distance of 30 cm from the mid-point of the needle produces a deflection of 45°. When another magnet is placed at the same distance, it produces a deflection of 30°. Then the ratio of their magnetic moments is

30. In Tan B position of null deflection method of comparing the magnetic moments of bar magnets, the ratio of their moments is given by