Putting a piece of iron or steel inside the coil makes the magnet strong enough to attract objects. The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage.
When a magnet is first made, it has the highest number of electrons pointing in this direction, therefore being as strong as it can ever get. If a magnet has been weak since you bought it, it likely has been weak since production and there is nothing you can do--you should discard the magnet.Place your weak magnet within the magnetic field of a much stronger magnet. Setting it right next to the magnet will produce the best result. The stronger magnet will actually help realign electrons that have spun out of axis since it's creation
Place both the magnets next to each other inside a freezer. Heat, radiation and electricity all play a part in diminishing a magnet's magnetic field. They do this by speeding up electrons' movements, causing them to shift out of place. Cold slows down magnets and holds them in place. Placing a larger magnet next to a weak magnet in a freezer will actually be a culmination of all these processes, causing your magnet to increase in strength. Take out the magnet and test its strength
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Answer:
Putting a piece of iron or steel inside the coil makes the magnet strong enough to attract objects. The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage.
Answer:
When a magnet is first made, it has the highest number of electrons pointing in this direction, therefore being as strong as it can ever get. If a magnet has been weak since you bought it, it likely has been weak since production and there is nothing you can do--you should discard the magnet.Place your weak magnet within the magnetic field of a much stronger magnet. Setting it right next to the magnet will produce the best result. The stronger magnet will actually help realign electrons that have spun out of axis since it's creation
Place both the magnets next to each other inside a freezer. Heat, radiation and electricity all play a part in diminishing a magnet's magnetic field. They do this by speeding up electrons' movements, causing them to shift out of place. Cold slows down magnets and holds them in place. Placing a larger magnet next to a weak magnet in a freezer will actually be a culmination of all these processes, causing your magnet to increase in strength. Take out the magnet and test its strength