Question

which of the following statements is true?magnetic field lines have endpoints pointing outward from the south pole toward the north pole.magnetic field lines are continuous, pointing outward from the north pole toward the south pole.magnetic field lines have endpoints pointing outward from the north pole toward the south pole.magnetic field lines are continuous, pointing outward from the south pole toward the north pole.

Answer 1

Magnetic field lines are continuous and emerge from a magnet's north pole, ending at the south pole, thus pointing outward from the north pole toward the south pole and forming closed loops inside the magnet.

Step-by-step explanation:

The correct statement about magnetic field lines is: Magnetic field lines are continuous, pointing outward from the north pole toward the south pole. This is based on the behavior of a compass in a magnetic field, where the compass needle's north pole is repelled by the magnet's north pole and attracted to the magnet's south pole, showing the direction of the field lines. Hence, the magnetic field lines emerge from a magnet's north pole and enter its south pole, forming continuous loops.

Magnetic field lines never cross, indicating that the magnetic field is unique at any given point in space. Additionally, inside the magnet, magnetic field lines continue from the south pole back to the north pole, forming complete loops.

Answer 2

Magnetic field lines have endpoints pointing outward from the north pole toward the south pole.

Step-by-step explanation:

Magnetic field lines represent the direction a north magnetic pole would move when placed in the field. According to the right-hand rule, the field lines emerge from the magnetic north pole and converge at the south pole. This implies that the magnetic field lines have endpoints pointing outward from the north pole toward the south pole.

The right-hand rule states that if you point your thumb in the direction of the current (conventional current flow, opposite to electron flow), your index finger in the direction of the magnetic field, the magnetic field lines (or flux lines) will be in the direction of your middle finger. In this context, the thumb represents the north pole, and the magnetic field lines point from the thumb (north pole) to the other fingers (south pole).

The behavior of magnetic field lines is consistent with the fact that magnetic poles, like electric charges, repel each other. Since like poles repel, the magnetic field lines must exit the north pole and enter the south pole, creating a continuous loop inside the magnet. This alignment helps us understand how magnets interact with each other and how magnetic fields influence charged particles in their vicinity. Therefore, the direction of magnetic field lines is a fundamental aspect of magnetism, guiding our understanding of its effects on various materials and particles.