Question

A vertical straight conductor carries a current vertically upwards. 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 the current

Answer 1

Answer: (B)

Same as at Q

Answer 2

If distance is same field will be same $\left( \because B = \frac { \mu _ { 0 } } { 4 \pi } \cdot \frac { 2 i } { r } \right)$