What is an electromagnet ? List any two uses.

Explanation

### Step-by-Step Solution:

1. **Definition of Electromagnet**:
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It consists of a core material, typically iron, that becomes magnetized when an electric current flows through a wire wrapped around it. This means that when electricity is passed through the wire, the core material exhibits magnetic properties.

2. **Construction of an Electromagnet**:
To create a simple electromagnet, take a piece of iron and wrap insulated copper wire around it. When you connect the ends of the wire to a power source (like a battery), an electric current flows through the wire, and the iron core becomes magnetized, turning the entire assembly into an electromagnet.

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