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A classic and ancient experiment is to get a compass, a battery (9volt is fine), and some wire. Notice that the compass changes when the circuit is closed (wire connected to the two terminals). You can also see that the compass gets affected less when it is far from the wire versus next to it.
If your interested in the math behind the experiment, you may want to do some research on the Biot-Savart Law. The Biot-Savart law describe the magnetis field when the current is constant, or not time-varying. A more general form of the equation is called Ampere's Law, and the more general case of that is Maxwell's equations.
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Is polarization the source of magnetism?
No. Grain structure with "free" electrons or electrical current flow are the sources of magnetism
The source of magnetism is?
magnetic monopoles
Does the magnetic field increase or decrease if the current is decreased?
An increase in an electrical current will cause magnetism to increase but a decrease in an electrical current will cause magnetism to decrease.
What will increasing the electric current to an electromagnet do to its magnetism?
An increasing electric current moving into an electromagnet will become stronger in its magnetism. As the atoms align the increasing magnetism will stop at one point, making the electromagnet as strong as it can be.
What is demagnitising current?
Demagnetizing a current means too take away the magnetism from the current ;)
How can you develop a magnet?
Electric current in a coil can induce magnetism in an iron nail,place near the coil.when the electric current is cut off the magnetism in the iron nail disappears.the magnetism in the nail exist so long as there is electric current in the coil.this is an electromagnet.
What is the source of magnetism?
Magnetism is caused by moving electrical charge. Magnetic force is also related to electromagnetism.
Is the earth's core a possible source of magnetism?
yes the molten metals in the core generally produce ions.. when this liquid metal ions flows in the core the constitute sort of current... we know current generates magnetic field.. its the reason for earth magnetism........ you also might heard about the magnetic poles shifting... answer is the same
Can the rock magnetite lose its magnetism?
The rock magnetite can only very rarely lose all of its magnetism. It is an important source and tool for magnetism and the testing of equipment in laboratories.
Classify magnet according to materials or source of magnetism?
no comment
What scientist do to prove and introduce current electricity?
they made inventions to prove that current electricity is there.
What does it mean to source current?
the source current is the current that flows from the power source.
