Question

Direction of magnetic field in a loop kept near a current carrying straight conductor

Answer 1

ANSWER

To find the direction of magnetic field we can use right hand thumb rule.

RIGHT HAND THUMB RULE:

Imagine that we are holding a current carrying conductor in our right hand and stretch the right thumb. If the thumb points the direction of current flowing in the conductor , then the fingers wrapping around the wire shows the direction of magnetic field lines.

DIRECTION OF MAGNETIC FIELD LINES IN A CURRENT CARRYING CIRCULAR LOOP:

If the current is flowing from down to up, then the direction of magnetic field lines are anticlockwise. If the current is flowing from top to bottom then the direction of magnetic field line are clockwise.

At the center of the loop the field line won't intersect, instead they are parallel and flows in one direction.