What will happen to a compass-needle when the compass is placed below a wire and a current is made to flow through the wire? Give a reason to justify your answer.

Explanation

To answer the question about what happens to a compass needle when it is placed below a wire carrying current, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Setup**:
- We have a wire that carries an electric current.
- A compass needle is placed below this wire.

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