Question

Betsy dropped a nail as she was assembling a birdhouse. She decided to make a simple electromagnet to try to attract the metal nail. Which list of material would make the best electromagnet?ametal rod for a core, copper wire, 9-volt batterybglass rod for a core, copper wire, 9-volt batterycplastic rod for a core, copper wire, 9-volt batterydwooden rod for a core, copper wire, 9-volt battery

Answer 1

Answer and explanation:

A correct option is an option (A) as a metal rod especially of iron, cobalt, or nickel is required to make an electromagnet. The metal will act as an electromagnet when current flows through the wire wound around the metal.

Option B is incorrect because the glass rod is not a metal, and it is non-magnetic, meaning it does not respond to the magnetic effects.

Option C is incorrect because the plastic rod is not a metal, and it is non-magnetic, meaning it does not respond to the magnetic effects.

Option D is also incorrect as the wooden rod is not a metal, and it is non-magnetic, meaning it does not respond to the magnetic effects.