Procedures: (Note: Make sure that the iron nail does not have any rust. Be careful in handling materials. ) 1. Make an electromagnet by winding the electrical wire around the large nail. 2. Connect both ends of the wire to a dry cell. 3. Test the electromagnet by placing some pins and thumbtacks near the nail. Does the nail attract the pins and thumbtacks? 4. Loosen the coil of wire in the electromagnet and find out how ov




paano super po ang bobobo ng mga nag sasagot iyan ​