Answer:
1.)An Electromagnet is a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.
2.)You can make an Electromagnet stronger by doing these things:
•wrapping the coil around a piece of iron (such as an iron nail)
•adding more turns to the coil.
•increasing the current flowing through the coil.
3.)Electromagnetism has important scientific and technological applications. It is used in many electrical appliances to generate desired magnetic fields. It is even used in a electric generator to produce magnetic fields for electromagnetic induction to occur.
