Multiple-Choice Homework Problem 10. 7 The figure to the right shows the traject

Question

Multiple-Choice Homework Problem 10. 7 The figure to the right shows the trajectory of a proton (mp = 1. 67 times 10^-27kg, qp = 1. 602 times 10^-19C) in a magnetic field. Suppose the field is of strength of the maximum field of a traditional superconducting magnet B = 15T. The proton travels at a speed of 1 times 107, compute the radius and the direction of the orbit. Select One of the Following: 3 times 10^-5m, counter-clockwise 3 times 10^-5m, clockwise 2 times 10^-4m, counter-clockwise 2 times 10^4m, clockwise 6 times 10^4m, counter-clockwise 6 times 10^4m, clockwise 7 times 10^-3m, counter-clockwise 7 times 10^-3m, clockwise Multiple-Choice Homework Problem 10. 8 The figure below shows a current-carrying wire in a uniform magnetic field. The magnetic field is directed into the page. The current direction is as drawn. Select the vector drawn in the box to the right of the figure that points in the direction of the magnetic force on the wire. Select One of the Following: Figure Figure Figure Figure Multiple-Choice Homework Problem 10. 9 You draw a coordinate system with +x pointing to the right of the page and +z pointing into the page. In what direction is +yl Select One of the Following: into the page out of the page to the left of the page to the right of the page to the top of the page to the bottom of the page

Explanation / Answer

10.7)

centripetal force = magnetic force

m*v^2/r=q*v*B

1.67*10^-27*(1*10^7)^2/r=1.602*10^-19*1*10^7*15

===> r=6.95*10^-3 m

radius r=6.95 mm

or

r=7mm =7*10^-3 m

the direction of the orbt is counter-clockwise

10.8)

by using Fleming's left hand rule,

force on the current carrying wir is perpendculer to both B and i

which down ward as shown in fiqure (2) or option(b)

10.9)

if +x is pointing to the right side

and +z is pointing into the page

then,

+y dirction is to wards the bottom of te page

hence option (f) is correct

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

---

---

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