What is a good example of magnetism?
The most familiar example of magnetism is a bar magnet, which is attracted to a magnetic field and can attract or repel other magnets. Ancient people used lodestones, natural magnets made of the iron mineral magnetite.
How will the magnetic field change if the battery is removed and placed in the opposite direction?
How will the magnetic field change if the battery is removed and placed in the opposite direction? Explanation: Reversing the battery will reverse the direction of the current. Using the right hand rule, it can be seen that this will also reverse the direction of the magnetic field.
How is Right hand rule used in magnetism?
The right hand rule states that: to determine the direction of the magnetic force on a positive moving charge, point your right thumb in the direction of the velocity (v), your index finger in the direction of the magnetic field (B), and your middle finger will point in the direction of the the resulting magnetic force …
What if there is no magnetic field?
There is an invisible force protecting us, keeping our atmosphere in place. Without it, life on Earth would be over very quickly. The Earth’s magnetic field protects us by deflecting much of the incoming solar radiation. Without it, our atmosphere would be stripped by solar winds.
What is magnetism give an example?
Magnetism is defined as an attractive and repulsive phenomenon produced by a moving electric charge. The most familiar example of magnetism is a bar magnet, which is attracted to a magnetic field and can attract or repel other magnets.
What causes magnetism?
Magnetism is caused by the motion of electric charges. Their movement generates an electric current and causes each electron to act like a microscopic magnet. In most substances, equal numbers of electrons spin in opposite directions, which cancels out their magnetism.
How will you relate the strength of magnetic field with the distance between the magnetic field lines?
The strength of the B-field is inversely proportional to the distance between field lines. It is exactly proportional to the number of lines per unit area perpendicular to the lines. A magnetic field line can never cross another field line. The magnetic field is unique at every point in space.