A magnet freely suspended in a vibration magnetometer makes `40` oscillation per minute at a place `A` snf `20` oscillations per min at a place `B`. If the horizontal component of earth's magnetic field at `A` is `36xx10^(-6)T` , then its value at `'B'` is

A magnet freely suspended in a vibration magnetometer makes 10 oscillations per minute at a place A and 20 oscillations per minute at a place B. If the horizontal component of earth's magnetic field at A is 36xx10^(-6)T , then its value at B is

A magnet freely suspended in a vibration magnetometer makes 40 osillations per' minute at place A and 20 oscillations per minute at a place B. If the horizonatal component of earth's magnetic field at A is 36xx10^(-6)T, then its value at B is

A bar magnet of moment of inertia of 500 gcm^2 makes 10 oscillations per minute in a horizontal plane. What is its magnetic moment, if the horizontal component of earth's magnetic field is 0.36 gauss?

A bar magnet is put on the hanger of oscillation magnetometer and is made to oscillate in earth's magnetic field. Frequency of oscillation of bar magnet is found to be 3 Hz at a place where horizontal component of earth's magnetic field is 25 muT . Now a short magnet is placed to the north of magnetometer in such a manner that its North Pole points towards north. Distance of short magnet from the bar magnet hanging inside the magnetometer is 1 m. Frequency of oscillation now becomes 6 Hz. What is magnetic moment of short magnet?

A magnet is suspended in such a way that it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30^(@) and 15 oscillations minute at a place where dip angle is 60^(@) . The ratio of total earth's magnetic field at the two places is

A magnet is suspended in such a way that it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30^(@) and 15 oscillations minute at a place where dip angle is 60^(@) . The ratio of total earth's magnetic field at the two places is

The magnetic needle of a vibration magnetometer makes 12 oscillations per minute in the horizontal component of earth's magnetic field. When an external short bar magnet is placed at some line, it makes 15 oscillations per minute, If the poles of the bar magnet are interchanged, the number of oscillations it makes per minute is