19. 0-4 points Glancolil6 20 P 039 My Notes Ask Your Teache conducts 23.0 A of d

Question

19. 0-4 points Glancolil6 20 P 039 My Notes Ask Your Teache conducts 23.0 A of dc current to, and from, an instrument. The Insulated wires are of negligible diameter but are 2.8 mm apart. A third wire is placed in f the two wires shown in Fig. 20-56, paralilel and just to the right. If it carries 23.0 A upward, what force per meter of length does it exert on each of the other two wires? Assume it is 2.9 mm from the nearest wire, center to center Force/length on left (farthest) wire: N/m B -Select Force/length on right (nearest) wire: N/m Select 28 m Figure 20-56 Practce Another Version

Explanation / Answer

Write expression for the force between long wires.

from electro magnetism

F/L =  ?o*I1*I2/2?r

?o = 4?*10^-7

F/L = 2*10^-7*I1*I2/r

F/I = (2x10^-7)(23)(23) / (2.9x10^-3)

F/I (right/right) = 0.0364 N/m


F left/I left = (2x10^-7)(23)(23) / 0.0058
F/I = 0.018 N/m

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.