Magnetic field of the earth is `0.3 G`. A magnet is oscillating with the rate of 5 oscillations/min. How much the magnetic field of the earth is increased, so that the number of oscillations becomes 10 per minute?

A magnet makes 5 oscillations per minute in H=0.3times10^(-1) T .By what amount the field should be increased so that the number of oscillations is 10 in the same time?

A magnet of magnetic moment M oscillating freely in earth's horizontal magnetic field makes n oscillations per minute. If the magnetic moment is quadrupled and the earth's field is doubled, the number of oscillations mode per minute would be

A bar magnet is oscillating in the earth's magnetic field with a time period T . If the mass is increased four times, then its time period will be:

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 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 inter changed, the number of oscillations it takes per minute is

Why are oscillations of a copper sheet in a magnetic field highly damped ?

The factors on which the period of oscillation of a "bar" magnet in uniform magnetic field depend

The ratio of magnetic moment of two bar magnet is 13:5 . These magnets are held togather in a vibration magnetometer are allowed to oscillate in earth's magnetic field with like poles togather 15 oscillations per minute are made. What will be the frequency of oscillation of system if unlike poles are togather?

When a bar magnet is placed at some distance along the axis of the magnetic needle of an oscillation magnetometer located in earth's magnetic field, the needle makes 14 oscillaitons per minute. If the bar magnet is turned so that its poles exchange their positions, the needle makes 20 oscillations per minute. If the magnet is completely removed, the frequency of the needle is nearly ("assuming"BgtB_(H) "at needle")