Question:
A current through a horizontal power line flow in east to west direction. What will be the direction of magnetic field at a point directly below when viewed from east end
A current through a horizontal power line flow in east to west direction. What will be the direction of magnetic field at a point directly below when viewed from east end
Options:
- a) Clockwise in a plane perpendicular to the wire
- b) Anti-clockwise in a plane perpendicular to the wire
- c) Clockwise in a plane of parallel to the wire
- d) Anti-clockwise in a plane of parallel to the wire
- a) Clockwise in a plane perpendicular to the wire
- b) Anti-clockwise in a plane perpendicular to the wire
- c) Clockwise in a plane of parallel to the wire
- d) Anti-clockwise in a plane of parallel to the wire
correct answer : a)
Explanation:
As per the right-hand thumb rule, the direction of magnetic field lines as seen from the east end of a wire carrying current from east to west will be in a clockwise direction in the plane perpendicular to the wire.
As per the right-hand thumb rule, the direction of magnetic field lines as seen from the east end of a wire carrying current from east to west will be in a clockwise direction in the plane perpendicular to the wire.