Question

A girl is trying to make a simple at your mind to help her pick up a piece of metal. She dropped under a car which list of materials would she need to make an electromagnet?A. Plastic rod for a core copper wire 12 V battery.B. Glass rod for a core copper wire 12 V battery.C. Metal rod for core copper wire 12 V battery.D. Wooden rod for a copper wire 12 V battery.

Answer 1

The correct answer would be option C. Metal rod for a core, copper wire, and a 12 V battery.