The needle of a deflection galvanometer shows a deflection of `60^(@)` due to a short bar magnet at a certain distance in tan A position. If the distance is doubled, the deflection is

The ratio of magnetic field due to a given short bar magnet in tan A and tan B position for the same distance is

In a tangent galvanometer a deflection of 30^(@) is obtained wth a certain current flowing through the coil. If the current is tripled, the deflection obtained 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-

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 moving coil galvanometer shows a deflection of 12^(@) , when a current of 1 mA flows through it . If the current is 2 mA , then the deflection will be __________ .

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

A moving coil galvanometer shows a deflection of 50^@ for a current of 0.3 mA. What current will produce a deflection of 40^@ ?