ALLEN vibration 12 The magnetic needle of a magnetometer

Last updated: 6/19/2023

ALLEN vibration 12 The magnetic needle of a 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 distance along the axis of the needle in the same 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 1 6T 2 63 3 65 4 67 A current I 10 sin 100m t A is passed in first 13 a 12 f fe 15 and at af ad fanm at ge fer fand acr 1 6T 3 65 I 2 63 4 67 10 sin 100m t Aug