Two short magnets have equal to pole strength but one is twice as long as the other. The shorter magnet is placed 20 cm in tan A position from the compass needle. The longer magnet must be placed on the other side of the magnetometer for no deflection at a distance equal to:

Two short bar magnets have equal pole stengths but one is twice as long as the other one . The short magnet is placed at a distance of 30 cm in tan A position form the compass needle . The longer magnet must be placed on the other side of the compass needle for no deflection at a distance of .

A short magnet produces a dfection of 30^(@) when placed at certain distance in tanA position of magnetometer. If another short magnet of double the length and thrice the pole strength is placed at the same distance in tabB position of the magnetometer, the deflection produced will be

A short magnet porduces a deflection of 30^(@) when placed at certain distance in tanA position of magnetometer. If another short magnet of double the length and thrice the pole strength is placed at the same distance in tan B position of the magnetometer, the deflection produced will be-

Two identical thin bar magnets each of pole strength 'm' and magnetic length are placed at 90^@ to each other with north pole of one magnet touching the south pole of the other magnet. The magnetic moment of the system is

The magnetometer of the previous problem is used with the same magent in Tan-B position. Where should the magnet be placed to produce a 37^@ deflection of the needle?

The magnetometer of the previous problem is used with the same magent in Tan-B position. Where should the magnet be placed to produce a 37^@ deflection of the needle?

The tangents deflection produced in tan A and B positions by a short magnet at equal distances are in the ratio .