The magnetic field is represented by field lines that start at a magnet’s north pole and end at the south pole . When most people think of magnetism, they think about the magnetic force experienced between two magnets.
Which pole do magnetic field lines come out of?
Thus, the magnetic field lines point away from the north pole of a magnet and toward its south pole. Figure 20.9 The black lines represent the magnetic field lines of a bar magnet. The field lines point in the direction that the north pole of a small compass would point, as shown at left.
Do magnetic field lines go into or out of the north pole?
Magnetic field lines outside of a permanent magnet always run from the north magnetic pole to the south magnetic pole . Therefore, the magnetic field lines of the earth run from the southern geographic hemisphere towards the northern geographic hemisphere.
Which pole does a magnetic field point to?
How it works. A compass points north because all magnets have two poles , a north pole and a south pole, and the north pole of one magnet is attracted to the south pole of another magnet. (You may have seen this demonstrated by a pair of simple bar magnets or refrigerator magnets pushed end to end.)
Do magnetic field lines come into or out of south poles of magnets?
Magnetic field lines are closed curves leaving from North pole and entering the South pole when you follow them on the outside the magnet . A compass, which is a small magnet itself, lines up parallel to the magnetic field lines at the point it is placed.
What is the most magnetic place on earth?
The south magnetic pole intersects the Earth at 78.3 S latitude and 142 E longitude. This places the south magnetic pole in Antarctica . The magnetic poles are also where the magnetic fields are the strongest.
Where is a magnetic field strongest?
The magnetic field is strongest at the poles , where the field lines are most concentrated.
Can we see magnetic flux lines?
Solution: No, we cannot see magnetic flux lines as the “lines of magnetic flux” is purely an imaginary concept to understand the magnetic field clearly.
Where do magnetic fields point?
They point from the north pole to the south pole . However, the magnetic field lines do not just end at the tip of the magnet. They go right through it, so that inside the magnet the magnetic field points from the south pole to the north pole.
Is the South Pole magnetic?
Because opposite poles attract, Earth’s south magnetic pole is physically actually a magnetic north pole (see also North magnetic pole § Polarity). The south magnetic pole is constantly shifting due to changes in Earth’s magnetic field.
Do magnetic fields move?
Electric fields come from charges. So do magnetic fields , but from moving charges, or currents, which are simply a whole bunch of moving charges. In a permanent magnet, the magnetic field comes from the motion of the electrons inside the material, or, more precisely, from something called the electron spin.
Why are magnetic field lines closed curves?
Magnetic field lines are closed curves as they propagate from the North pole outside the magnet’s body to the magnet’s body and from the south pole to the north pole inside the magnet’s body . Hence, the magnetic field lines are closed.
How do you know if a magnet is north or south?
One easy way to tell which pole is north and which is south is to set your magnet near a compass . The needle on the compass that normally points toward the north pole of the Earth will move toward the magnet’s south pole.
Why do like poles repel?
Like poles of a magnet repel each other. This is because when the two magnets of like poles are kept facing each other the lines of forces are in opposite directions . ... When the unlike poles of a bar magnet face each other the magnetic lines of force are in the same direction and hence unlike poles attract each other.
What is our best evidence that Earth has a magnetic field?
The best proof is to use a direction compass to see where the north position points , and you will notice that it always points to the north and south poles. Hence, the correct answer is option B.
