The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.
Wait what is m/s?
Can you tell me that so i could help
<span>textbook
track shoes
</span><span>basketball</span>
U have to *modify it to increase its ground clearance*
