The strength of the magnetic field in which the magnet of a vibration magnetometer is oscillating is increased 4 times its original value. The frequency of oscillation would then become
A
Twice its original value
B
Four times its original value
C
Half its original value
D
One-fourth its original value
Text Solution
Verified by Experts
The correct Answer is:
A
Topper's Solved these Questions
MAGNETISM
ERRORLESS |Exercise Magnet and it s Properties|15 Videos
MAGNETISM
ERRORLESS |Exercise Earth Magnetism|8 Videos
MAGNETIC EFFECT OF CURRENT
ERRORLESS |Exercise Exercise|394 Videos
RAY OPTICS
ERRORLESS |Exercise SET|25 Videos
Similar Questions
Explore conceptually related problems
The strength of a magnetic field increases as _________
If the strength of the magnetic field is increased by 21% the frequency of a magnetic needle oscillating in the field.
The frequency of oscillation of the magnet in an oscillation magnetometer in the earth's magnetic field is 40 oscillations per minute. A short bar magnet is placed to the north of the magnetometer, at a separation of 20cm from the oscillating magnet, with its north pole pointing towards north (figure). The frequency of oscillation is found to increase to 60 oscillations per minute. Calculate the magnetic moment of this short bar magnet. Horizonatl component of the earth's magnetic field is 24 muT .
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?
A short magnet makes 40 oscillations per minute when used in an oscillation magnetometer at a place where the earth's horizontal magnetic field is 25 muT . Another short magnet of magnetic moment 1.6 A m^2 is placed 20 cm east of the oscillating magnet. Find the new fregquency of oscillation if the magnet has its north pole (a) towards north and (b) towards south.
The magnet of a vibration magnetometer is heated so as to reduce its magnetic moment by 19% . By doing this the period time of the magnetometer will
The magnetic needle of an oscillation magnetometer makes 10 oscillations per minut under the action of earth's magnetic field along. When a bar magnet is placed at some distance along the axis of the needle it makes 14 oscillations per minute. If the bar magnet is turned so that its poles interchange their position, then the new frequency of oscillation of the needle is:
Two magnets are held together in a vibration magnetometer and are allowed to oscillate in the earth's magnetic field with like poles togather, 12 oscillations per minute are made but for unlike poles togather only 4 oscillations per minute are axecuted. The ratio of their magnetic miments is