Published by:
CGP EDU Academic Team
Published on: September 12, 2026
The magnetic induction due to an infinitely long straight wire carrying a current i at a distance r from wire is given by
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
The magnetic induction due to an infinitely long straight wire carrying a current $i$ at a distance $r$ can be derived from Ampere's Law. The formula is given by:
$B = \frac{\mu_0 i}{2 \pi r}$, where $B$ is the magnetic field induction, and $\mu_0$ is the permeability of free space.
Comparing option A with this formula, we see that it matches exactly, confirming that option A is the correct answer.
$B = \frac{\mu_0 i}{2 \pi r}$, where $B$ is the magnetic field induction, and $\mu_0$ is the permeability of free space.
Comparing option A with this formula, we see that it matches exactly, confirming that option A is the correct answer.
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