what are the similarities between gravity and magnetism?
479678
4) Gravity (mass) is monopolar it always attracts. Magnetism is dipolar; like poles repel while unlike poles attract. 5) All matter has mass therefore contributes to g. While main magnetic field is due to convection currents in the core; it effects on some minerals not all.
509629
They are: Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel. Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other. Directive Property – A freely suspended magnet always points in a north-south direction.
461175
Motors and generators are basically the same device. However, their main similarities are their components. Both have an electric coil and source of magnetic field. They have also both work in the concept of electro-magnetism.
1238851
The major difference between electricity and magnetism is the presence of magnetism. Electricity can be present in a static charge, while magnetism's presence is only felt when there are moving charges as a result of electricity.
1311062
The amount of gravity that something possesses is proportional to its mass and distance between it and another object. This relationship was first published by Sir Issac Newton.
1387056
When two magnets come near each other, their fields create forces that attract or repel. The Earth is itself a huge magnet, and the force its field exerts on other magnets makes them point in a north–south direction. This effect is used in the magnetic compass.
68966
The properties of magnetic field lines can be summarized by these rules: The direction of the magnetic field is tangent to the field line at any point in space. A small compass will point in the direction of the field line. The strength of the field is proportional to the closeness of the lines.
1070877
The difference between magnetic and non-magnetic materials is that the magnetic materials are attracted to an external magnetic field due to their proper alignment of magnetic domains whereas non-magnetic materials are repelled from an external magnetic field due to their random arrangement of magnetic domains.
411785
The relationship between electricity and magnetism Electricity and magnetism are intimately linked: a changing magnetic field will induce a current in a wire and a moving current such as down a wire, produces a magnetic field around it.
502225
Gravitational fields are determined only by the mass ( or mass-energy) of a body. ... magnetic fields are produced by charged particles in motion, and depend on the charge and velocity of these particles, but not on their mass. Magnetic fields are 'polar' fields with a North and South polarity.
376063
By itself gold is not attracted to the magnetic fields we come across in our everyday lives. If you have a massive magnetic field then gold will be ever so slightly magnetic. It's safe to say that for practical purposes gold is not magnetic.
125106
Magnets attract iron due to the influence of their magnetic field upon the iron. ... When exposed to the magnetic field, the atoms begin to align their electrons with the flow of the magnetic field, which makes the iron magnetized as well. This, in turn, creates an attraction between the two magnetized objects.
1414186
When the object enters the magnetic field, the force of the magnet acts, and the object is attracted. The pattern of these lines of force tells us something about the characteristics of the forces caused by the magnet. The magnetic lines of force, or flux, leave the north pole and enter the south pole.
115273
how does a magnetic field differ from a gravitational field? Gravitational fields are determined only by the mass ( or mass-energy) of a body. ... magnetic fields are produced by charged particles in motion, and depend on the charge and velocity of these particles, but not on their mass.
789647
magnetic circuits In magnetic circuit. The magnetomotive force, mmf, is analogous to the electromotive force and may be considered the factor that sets up the flux. The mmf is equivalent to a number of turns of wire carrying an electric current and has units of ampere-turns.
1383572
The key difference between the two is that magnetism refers to the phenomena associated with magnetic fields or magnetic forces, whereas the term electromagnetism is the type of magnetism produced by electric current, and is associated with both magnetic fields and electric fields.
1459157
Magnetism is caused by the motion of electric charges. ... Each atom has electrons, particles that carry electric charges. Spinning like tops, the electrons circle the nucleus, or core, of an atom. Their movement generates an electric current and causes each electron to act like a microscopic magnet.