Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A long straight wire of a circular cross-section with radius a carries a steady current 
. The current is uniformly distributed across this cross-section. The plot of magnitude of magnetic field with distance from the center of the wire is given by
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
By Ampere's law
When the point is out side 
When the point is at the surface 
constant
When the point is inside 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Physics
If and , find the value of and .
Two guns and can fire bullets at speeds and respectively. From a point on a horizontal ground, …
Consider a blockand trolley system as shown in figure. If the coefficient of kinetic friction betwe…
A suspended simple pendulum of length is making an angle with the vertical. On releasing, its vel…
A body of mass 0.5 kg is projected under gravity with a speed of at an angle of with the vertical…
A rod of length 50 cm is pivoted at one end. It is raised such that it makes an angle of from the …