Question

Magnetic field produced due to a current carrying conductor is independent of

• A. current
• B. length
• C. distance
• D. none of these

Answer 1

Answer: (B)

length

Answer 2

The magnetic field at $P$ a perpendicular distance $r$ from a very long straight conductor carrying a current $I$ is given by Amperes' law $B=\frac{\mu_{0}I}{2\, \pi r}$