-------------------------------------------------------
answers:
axial say: All that is is made of magnetic fields, so use is everything that exists.
-
Jim Moor say: speakers
microphones
generating electricity
electric motors
hearing aids
tv
guidence systems
gps
radios
magnetic tape recorders
credit card strip readers
ATM machines
electric guitars
compasses
Earth's magnetic field making earth livable
electric cars
It's almost easier, other than life with bows and arrows, to ask where we don't use magnets.
-
Technobuff say: Probably the biggest single use of PERMANENT magnets in the world today is providing the magnetic field for generating electricity using wind power.
There are also permanent magnets in speakers, headphones, small DC electric motors, etc..
Then there is a whole host of devices using magnetic fields for their operation, such as doorbells, MRI machines, relays, contactors etc. Power transformers employ magnetic field coupling to change the output voltage in AC circuits, and all AC motors employ magnetic fields. The difference is these magnetic fields are temporary, are generated by currents in wire coils, and very often these magnetic fields need to change polarity in order for the devices to work. AC electric motors are one such application where magnetic field reversal is employed.
-
Spock (rhp) say: without magnets, there could be no electric motors. Nor could there be generators to create the electricity we use every day.
-
Sancho say: Magnets in motion generate electricity. This is because electricity and magnetism are essentially the same thing.
-
. say: Magnets are used to make a tight seal on the doors to refrigerators and freezers. They power speakers in stereos, earphones, and televisions. Magnets are used to store data in computers, and are important in scanning machines called MRIs (magnetic resonance imagers), which doctors use to look inside people's bodies.
-
im gay af say: no
-