What is the direction of magnetic field line inside and outside of a bar magnet?
(a) The direction of magnetic field lines outside a bar-magnet is from North seeking pole to south seeking pole while inside the magnet it is from south to north seeking pole.
Why do magnets align themselves in a north-south direction?
Magnetism | Short/Long Answer Questions Solution: A freely suspended magnet always rests in the north-south direction because the magnetic south pole of the earth lies in the geographic north direction and the magnetic north pole of the earth lies in the geographical south direction.
Why does a compass always point north to south?
When it comes to magnets, opposites attract. This fact means that the north end of a magnet in a compass is attracted to the south magnetic pole, which lies close to the geographic north pole. The geographic north and south poles indicate the points where the earth’s rotation axis intercepts earth’s surface.
Does a compass needle align itself?
A compass needle aligns itself and points toward the top of Earth’s magnetic field, giving explorers and lost souls a consistent sense of direction.
What happens if you put a compass in a magnetic field?
The needle of a compass is itself a magnet, and thus the north pole of the magnet always points north, except when it is near a strong magnet. When you take the compass away from the bar magnet, it again points north. So, we can conclude that the north end of a compass is attracted to the south end of a magnet.
What happens to the needle of a compass kept nearby when electric current is switched on in a wire?
The needle of a magnetic compass starts deflecting when it is kept nearby a wire through which electric current is flowing. Therefore, this magnetic needle and the magnetic field suffer attractions and repulsions and hence the needle gets deflected.
How does a wire affect a compass?
Every electric current produces magnetism. Since the compass needle is also a magnet, the magnetic field around the wire attracted and repelled the ends of the compass magnet and caused it to move. You have seen that electricity flowing through a wire can cause a magnet to move. This is called the motor effect.