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Question:

PHYSICS HELP!! ONE MULTIPLE CHOICE (2 QUESTIONS) thanks!?

the direction of Earth‘s magnetic field is toward the a.) equator b) north magnetic pole c) south magnetic pole d.) surface2.) if all electrons create magnetic fields, why arent all materials magnets

Answer:

b) and question 2 is because not all materials have an electric charge
Answer to your 1st ques is straight obvious, so ur 2nd ques. there are basically 2 types of magnetic materials - paramagnetic and diamagnetic Out of these both show very feeble attraction or repulsion to magnetic environments. the most common and strongest magnetic forces are observed by ferromagnetic materials like iron and cobalt it all depends on the pairing of electrons
The earth is like an inverted bar magnet . see hyperphysics.phy-astr.gsu.edu/hba. The direction of the earth's magnetic field is toward its north magnetic pole. Magnetic fields are produced by moving charges, like the electrons moving around the nucleus of atoms. Electrons in atoms are like small bar magnets whose north and south poles lie along a straight line that is perpendicular to the plane of motion of the electrons. In magnetic materials, almost all the atomic bar magnets associated with the motion of the electrons are aligned in only one particular direction so that the individual magnetic fields produced by each moving electron add together, producing a large total magnetic field. But in atoms of ordinary materials, the atomic bar magnets associated with the moving electrons point randomly in all directions that they cancel each other out, producing zero total magnetic field, which make them non-magnetic.

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