Points A, B, and C lie in a plane perpendicular to an infinitely long, straight wire…
PHYSICS · Single correct · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current
Problem
Points A, B, and C lie in a plane perpendicular to an infinitely long, straight wire carrying current I out of the page. Point A is 1 cm from the wire, point B is 2 cm away, and point C is 3 cm away. Which ranking correctly orders the magnitudes of the magnetic field at the three points?
(a) BA=BB=BC
(b) BC>BB>BA
(c) BA>BB>BC
(d) BA>BC>BB