Sagot :
Answer:
2.If you disconnect the wire, the magnetic field disappears and the nail is no longer a magnet. If you leave the wire connected long enough, the nail's magnetic domains will realign enough to make it a permanent magnet. ... The current flowing through the wire makes the wire hot and drains the battery quickly.
5.?
Explanation:
i hope it helps, sorry po Isa lang po yung nasagutan