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.
This is a chemical process.
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.
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.