A current carrying coil is placed with its plane in the magnetic meridian of the earth. When seen from east the current flowing in it appears clockwise. The magnetic. field at its centre is directed towards

Options

A. North
B. South
C. West
D. East

Answer

To determine the direction of the magnetic field at the center of a current-carrying coil placed in the magnetic meridian of the Earth, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Setup**:
- The coil is placed in the magnetic meridian, which means its plane is aligned with the north-south direction.
- The current in the coil, when viewed from the east, appears to be flowing in a clockwise direction.

2. **Visualizing the Coil**:
- Imagine looking at the coil from the east. The current flows in a clockwise manner, which means that if you were to draw the coil on a piece of paper, the current would move in a circular path in a clockwise direction.

3. **Applying the Right-Hand Rule**:
- To find the direction of the magnetic field produced by the current in the coil, we can use the right-hand rule.
- Curl the fingers of your right hand in the direction of the current flow (which is clockwise when viewed from the east).
- Your thumb will then point in the direction of the magnetic field inside the coil.

4. **Determining the Direction of the Magnetic Field**:
- When you curl your fingers clockwise, your thumb points away from you, which indicates that the magnetic field is directed into the plane of the coil (into the paper).
- Since you are viewing the coil from the east and the magnetic field is directed into the paper, this means that the magnetic field at the center of the coil is directed towards the west.

5. **Conclusion**:
- Therefore, the magnetic field at the center of the coil is directed towards the west.

### Final Answer:
The magnetic field at its center is directed towards the west.

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