A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole. It
(a) will stay in north-south direction only
(b) will stay in east-west direction only
(c) will become rigid showing no movement
(d) will stay in any position
Answers
Answer:
It will stay in any position when it is free to move in a horizontal plane at the magnetic poles.
Explanation:
This is because the magnetic field is vertical at the poles and the compass is in a horizontal plane, so it can show any direction.
A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole. It will stay in any position.
Therefore the correct answer is Option (d) will stay in any position
Explanation:
A compass needle which is allowed to move in a horizontal plane will attempt to suspend itself vertically to the horizontal plane which contains the compass when taken to a geomagnetic pole. That is, the horizontal plane which contains the compass will restrict the movement of the compass in a vertical direction; the compass will therefore remain in any location.
Nevertheless, a freely suspended magnet will become vertical at poles, The north pole that points to its north pole (Which is South magnetic) towards Earth.