Direction of Magnetic Field when Current Flows East to West

Explanation:
- When a current flows from east to west, it means that the flow of positive charges is in the opposite direction, i.e., from west to east. This is because conventional current flow is considered as the flow of positive charges.
- According to the right-hand rule, when you point your thumb in the direction of the current (west to east in this case), the direction in which your fingers curl represents the direction of the magnetic field.
- Therefore, when current flows from east to west (or positive charges flow from west to east), the magnetic field will be from north to south. This is because the magnetic field lines form closed loops around the current-carrying conductor.
- So, in this scenario, the magnetic field lines will be oriented in a north to south direction around the wire carrying the current from east to west.
- This relationship between the direction of current flow and the resulting magnetic field direction is a fundamental principle of electromagnetism known as the right-hand rule.
- Understanding the relationship between current flow and magnetic field direction is essential in various applications such as electromagnets, motors, and generators.
By following the right-hand rule and understanding the relationship between current flow and magnetic field direction, we can predict the orientation of the magnetic field when a current flows from east to west.