Yes
= a mixture is physical change... =
Melting is a physical process.
it is a physical change.
Every thing except a conducting wire, battery and a soft iron core is not needed for making an electromagnet
When making an electromagnet, the moving electrons come from the flow of electric current through a wire or coil of wire.
Making glue is a chemical process.
Making soft drinks is a chemical change. After my opinion it is physical process of mixing.
No, the electromagnet is not made weaker by making the core larger. It can be made weaker by decreasing its current and/or turns of coil.
This is a chemical process.
By making it an electromagnet. Include it in a circuit.
By making it an electromagnet. Include it in a circuit.
Making soft drinks is a chemical change. After my opinion it is physical process of mixing.