A current flows in a conductor from east to west. The direction of the magnetic field at a points above the conductor is

Options

A. Towards north
B. Towards south
C. Towards east
D. Towards west

Explanation

To determine the direction of the magnetic field at a point above a conductor carrying current from east to west, we can use the right-hand thumb rule. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Identify the Direction of Current Flow**:
- The current is flowing from east to west.

2. **Visualize the Setup**:
- Imagine a horizontal wire with current flowing from the east (right) to the west (left).

3. **Apply the Right-Hand Thumb Rule**:
- According to the right-hand thumb rule, if you point your right thumb in the direction of the current (east to west), your fingers will curl around the wire in the direction of the magnetic field lines.

4. **Determine the Direction of the Magnetic Field Above the Conductor**:
- When you apply the right-hand thumb rule, your fingers will curl in a circular motion around the wire.
- Above the wire (where we want to find the magnetic field), your fingers will point towards the north.

5. **Conclusion**:
- Therefore, the direction of the magnetic field at the point above the conductor is towards the north.

### Final Answer:
The direction of the magnetic field at a point above the conductor is towards the north.

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