A vertical straight conductor carries a current upward. A point P lies to the east of it at a small distance and another point Q lies to the west at the same distance. The magnetic field at P is

Question

A vertical straight conductor carries a current upward. A point P lies to the east of it at a small distance and another point Q lies to the west at the same distance. The magnetic field at P is (A) greater than at Q (B) same as at Q (C) less than at Q (D) greater or less than at Q depending upon the strength of current

Tardigrade Admin · Accepted Answer

Magnitude of magnetic field at any point due to a straight current carrying conductor depends only on the distance of the point with respect to current carrying conductor but not on the direction. Hence, BP=BQ (at same distance).

Q. A vertical straight conductor carries a current upward. A point $P$ lies to the east of it at a small distance and another point $Q$ lies to the west at the same distance. The magnetic field at $P$ is

greater than at Q

same as at Q

less than at Q

greater or less than at Q depending upon the strength of current

Magnitude of magnetic field at any point due to a straight current carrying conductor depends only on the distance of the point with respect to current carrying conductor but not on the direction. Hence, $B_{P} = B_{Q}$ (at same distance).

Q. A vertical straight conductor carries a current upward. A point P lies to the east of it at a small distance and another point Q lies to the west at the same distance. The magnetic field at P is