A finite piece of wire of total length 2d is bent halfway down the wire to make a 90° angle. It carries a known current I across the wire. We want to consider a point P a distance d from the ends of the wire (see figure). The answer is B(top) = мо = ~k and B(left) = 0 4pi 2 4pi v₂k but im confused on how they got it. A finite piece of wire of total length 2d is bent halfway down the wire to make a 90° angle. It car- ries a known current I across the wire. We want to consider a point P a distance d from the ends of the wire (see figure). a) Define Ids and 7 for two arbitrary slices. Draw said slices on the problem b) Find the Magnetic Field from one straight section of wire. c) Find the net Magnetic Field B at the point P. d d I P
A finite piece of wire of total length 2d is bent halfway down the wire to make a 90° angle. It carries a known current I across the wire. We want to consider a point P a distance d from the ends of the wire (see figure). The answer is B(top) = мо = ~k and B(left) = 0 4pi 2 4pi v₂k but im confused on how they got it. A finite piece of wire of total length 2d is bent halfway down the wire to make a 90° angle. It car- ries a known current I across the wire. We want to consider a point P a distance d from the ends of the wire (see figure). a) Define Ids and 7 for two arbitrary slices. Draw said slices on the problem b) Find the Magnetic Field from one straight section of wire. c) Find the net Magnetic Field B at the point P. d d I P
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter28: Current And Resistance
Section: Chapter Questions
Problem 65PQ
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Transcribed Image Text:A finite piece of wire of total length 2d is bent
halfway down the wire to make a 90° angle. It
carries a known current I across the wire. We want
to consider a point P a distance d from the ends of
the
wire (see figure).
The answer is B(top) =
мо
=
~k and B(left) =
0
4pi
2
4pi v₂k
but im confused on how they got it.
A finite piece of wire of total length 2d is bent
halfway down the wire to make a 90° angle. It car-
ries a known current I across the wire. We want to
consider a point P a distance d from the ends of the
wire (see figure).
a) Define Ids and 7 for two arbitrary slices. Draw
said slices on the problem
b) Find the Magnetic Field from one straight section
of wire.
c) Find the net Magnetic Field B at the point P.
d
d
I
P
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