Which of the following is a magnetic material?

Options

A. Copper
B. Nickel
C. Aluminium
D. Silver

Explanation

To determine which of the following materials is magnetic, we will analyze each option: Copper, Nickel, Aluminium, and Silver.

### Step-by-Step Solution:

1. **Understanding Magnetic Materials**:
- Magnetic materials are those that are attracted to magnets and can be magnetized. Common examples include iron, cobalt, and nickel.

2. **Analyzing Each Material**:
- **Copper**:
- Copper is a non-magnetic material. It is not attracted to magnets and cannot be magnetized.
- **Nickel**:
- Nickel is a magnetic material. It is attracted to magnets and can be magnetized.
- **Aluminium**:
- Aluminium is also a non-magnetic material. It does not respond to magnets.
- **Silver**:
- Silver is a non-magnetic material as well. It is not attracted to magnets.

3. **Identifying the Magnetic Material**:
- From the analysis, the only magnetic material among the options is Nickel.

4. **Conclusion**:
- Therefore, the answer to the question "Which of the following is a magnetic material?" is **Nickel**.

### Final Answer:
**Nickel is the magnetic material among the options provided.**

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