An infinitely long wire carrying a current I is bent at a right angle as shown i
ID: 1372996 • Letter: A
Question
An infinitely long wire carrying a current I is bent at a right angle as shown in the figure below. Determine the magnetic field at point P, located a distance x from the corner of the wire. (Use any variable or symbol stated above along with the following as necessary: ? and ?0.)
?
magnitude B =?
direction ? An infinitely long wire carrying a current I is bent at a right angle as shown in the figure below. Determine the magnetic field at point P, located a distance x from the corner of the wire. (Use any variable or symbol stated above along with the following as necessary: ? and ?0.) magnitude B = ? direction ?Explanation / Answer
The horizontal part makes no magnetic field on P, as P is on its axis.
The vertical part gives half the magnetic field of an infinitely long wire. Thus,
B = (uo I / [2 pi x] )/2
Thus,
B = uo I / [4 pi x], INTO THE PAGE [by right hand rule, ANSWER]