Question

Draw the pattern of the magnetic field lines due to a straight current carrying conductor indicating the direction of current in the conductor and the direction of the corresponding magnetic field lines.

Answer 1

A conductor with a straight current generates a magnetic field that creates concentric circles. The right-hand thumb rule shows the magnetic field's direction and current.

1. Right-Hand Thumb Rule for Conventional Current: To determine the direction of the magnetic field, position your thumb in the direction of the current (positive charge flow) and surround the conductor with your fingers.
2. Direction of Magnetic Field Lines: Magnetic field lines create circles around a conductor perpendicular to the current direction.