A small magnetic needle performs 10 oscillations/minute in the earth\'s horizontal
Channel: Doubtnut
Date: 29/03/2020

A small magnetic needle performs 10 oscillations/minute in the earth\'s horizontal magnetic field . When a bar magnet is placed near the small magnet in same position , frequency of oscillations becomes `10sqrt2` oscillations/minute . If the bar magnet be turned around end to end , the rate of oscillation of small magnet will become