Fill in the following blanks with suitable words :
A current-carrying coil of an insulated wire wrapped around a piece of iron is called ___________.

Answer

To fill in the blank in the statement "A current-carrying coil of an insulated wire wrapped around a piece of iron is called ___________," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Components**: The question describes a setup involving a coil of insulated wire and a piece of iron. It is important to identify what happens when current flows through such a coil.

2. **Identify the Function**: When current flows through a coil of wire wrapped around a piece of iron, the iron becomes magnetized. This is a key characteristic of electromagnetism.

3. **Recall the Term**: The specific term used to describe this setup is "electromagnet." An electromagnet is created when electric current passes through the wire coil, generating a magnetic field that magnetizes the iron core.

4. **Fill in the Blank**: Therefore, the complete statement would read: "A current-carrying coil of an insulated wire wrapped around a piece of iron is called **electromagnet**."

### Final Answer:
A current-carrying coil of an insulated wire wrapped around a piece of iron is called **electromagnet**.

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