A long, straight wire, carrying a current of 200 A, runs through a cubical wooden box, entering and leaving through holes in 200 A, the centers of opposite faces as shown in Figure. The length of 200 each side of the box is 20.0 cm. Consider an element dl of the 20.0 cm wire 0.100 cm long at the center of the box. Compute the magnitude dB of the magnetic field produced by this element at the points a, b, c, d, and e in the Figure. Points a, c, and d are at the centers of the faces of the cube; point b is at the midpoint of one edge; and point e is at a corner. Copy the Figure and show the directions and relative magnitudes of the field vectors. (Note: Assume that the length dl is small in comparison 1 to the distances from the current element to the points where the magnetic field is to be calculated )
A long, straight wire, carrying a current of 200 A, runs through a cubical wooden box, entering and leaving through holes in 200 A, the centers of opposite faces as shown in Figure. The length of 200 each side of the box is 20.0 cm. Consider an element dl of the 20.0 cm wire 0.100 cm long at the center of the box. Compute the magnitude dB of the magnetic field produced by this element at the points a, b, c, d, and e in the Figure. Points a, c, and d are at the centers of the faces of the cube; point b is at the midpoint of one edge; and point e is at a corner. Copy the Figure and show the directions and relative magnitudes of the field vectors. (Note: Assume that the length dl is small in comparison 1 to the distances from the current element to the points where the magnetic field is to be calculated )
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Transcribed Image Text:A long, straight wire, carrying a current of 200 A, runs through
a cubical wooden box, entering and leaving through holes in
200 A,
be
the centers of opposite faces as shown in Figure. The length of
200
each side of the box is 20.0 cm. Consider an element dl of the
20.0 cm
wire 0.100 cm long at the center of the box.
Compute the magnitude dB of the magnetic field produced by this element at the points a, b, c, d,
and e in the Figure. Points a, c, and d are at the centers of the faces of the cube; point b is at the
midpoint of one edge; and point e is at a corner. Copy the Figure and show the directions and
relative magnitudes of the field vectors. (Note: Assume that the length dl is small in comparison
1
to the distances from the current element to the points where the magnetic field is to be
calculated.)
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