filmov
tv
The figure shows, in cross section, four thin wires that are... | Physics Electricity & Magnetism
Показать описание
Question:
The figure shows, in cross section, four thin wires that are parallel, straight, and very long. They carry identical currents of i = 3.45 A in the directions indicated. Initially all four wires are at distance d = 19.4 cm from the origin of the coordinate system, where they create a net magnetic field B. (a) To what value of x must you move wire 1 along the x axis in order to rotate B counterclockwise by 30°? (b) With wire 1 in that new position, to what value of x must you move wire 3 along the x axis to rotate B by 30° back to its initial orientation?
Semester's work:
The figure shows, in cross section, four thin wires that are parallel, straight, and very long. They carry identical currents of i = 3.45 A in the directions indicated. Initially all four wires are at distance d = 19.4 cm from the origin of the coordinate system, where they create a net magnetic field B. (a) To what value of x must you move wire 1 along the x axis in order to rotate B counterclockwise by 30°? (b) With wire 1 in that new position, to what value of x must you move wire 3 along the x axis to rotate B by 30° back to its initial orientation?
Semester's work:
0:10:11
0:01:22
0:09:40
0:04:46
0:06:50
0:09:00
0:05:00
0:10:11
0:01:22
0:03:23
0:03:38
0:04:13
0:00:33
0:03:31
0:07:00
0:04:47
0:04:31
0:03:20
0:04:42
0:07:30
0:02:58
0:10:58
0:10:37
0:02:24