What is this effect called (Magnetism can... (Attract certain metal…
What is this effect called
A property where substances which become magnetized in a magnetic field but their magnetism disappears when the field is removed
The electromagnetic force is one of the four fundamental forces of nature
The Four Main Effects
A current is induced in a loop of wire when it is moved toward or away from a magnetic field, or a magnet is moved towards or away from it; the direction of current depends on that of the movement.
An electric current inside a wire creates a corresponding circular magnetic field outside the wire. Its direction (clockwise or counter-clockwise) depends on the direction of the current in the wire.
Magnetic poles (or states of polarization at individual points) attract or repel one another in a manner similar to positive and negative charges and always exist as pairs: every north pole is yoked to a south pole.
Electric charges attract or repel one another with a force inversely proportional to the square of the distance between them: unlike charges attract, like ones repel.
Attract certain metal products using magnets
Be helpful tools in our daily lives
Separate iron filings from mixed pile of randoms
Magnetism is used for...
many magical ways of controlling the invisible force which is not understandable to normal human beings
Devices to make sure the doors/lids close properly and don't bounce open
Devices that use magnetism include
Daily Calendar Closing Strap
Closing your laptop
The disc inside the device