jonesc19p16.problem Figure 19.14 Example 19.3: A current-carrying wire in a magn

Question

jonesc19p16.problem Figure 19.14 Example 19.3: A current-carrying wire in a magnetic field. A laboratory magnet (see the figure) with a field B = 0.40 T over an effective area 20.0 cm in diameter exerts a force on a current-carrying wire that crosses between the pole faces at right angles to the field. The current in the wire is 13.0 A What is the magnitude of the force on the wire? Submit Answer Tries 0/10 What is the direction of the force? (left, right, up, down, front, back) Submit Answer Tries 0/2

Explanation / Answer

we know that the force on a wire of length   L inside the magnetic field B , carrying a current of I oriented ina magnetic field is

F = Bilsin theta    here theta is 90 degrees

F = 0.4*13*0.2*1 = 1.04 N

now the direction is F = iL X B cross product

the direction of magnetic force is perpendicular to both magnetic field and current that is upward

Related Questions

Navigate

• Browse (All)
• Browse J
• Subjects

---

---

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