# Physics

Two charged particles initially are traveling in the positive x direction, each with the same speed v, and enter a non-zero magnetic field at the origin O. The magnetic field for x>0 is constant, uniform and points out of the page. In the magnetic field, their trajectories both curve in the same direction, but describe semi-circles with different radii. The radius R2 of the semi-circle traced out by particle 2 is bigger than the radius R1 of the semi-circle traced out by particle 1, and R2R1=7.09. Note that the drawing is not to scale, so the ratio of radii may not be represented accurately. Assume that the particles are sent through at different times so that they do not interact with each other.

(a) Assume that the two particles have the same mass m, but have different charges, q1 and q2. What is the ratio q2q1?

(b) How much energy did the particle with charge q2 gain traversing the region with magnetic field?

(c) Assume that instead of different charges as shown in the figure, the two particles have the same charge q, but have different mass m1 and m2. What is the ratio m2m1?

1. b) 0

posted by Phy
2. thanks a lot phy. any idea about the rest/some others?

posted by Annoyingmous
3. No, do you have any idea for others problems?

posted by Phy
4. I got 4th problem

posted by Phy
5. Please Phy 4th sol?

posted by Anonymous
6. B=n*E_0/c

wavelength= 2*pi*c/(n*omega)

Direction -z and -y

posted by Phy
7. Thanks Phy!

posted by Anonymous
8. This wave is traveling through a medium whose index of refraction is 1.3.
E= 2.8 xsin(2*π/lamdaz + 1.19e16) t V/m
B =B_0sin(2*π/lamdaz + 1.19e16 t) Tesla

Please tel ans for this phy.

posted by P
9. 2, 3, 5, 7 ,8 pls Phy

posted by Anonymous
10. No i didn't get them yet, I'll tell you when i get those, can u tell me the solutions of 1,4,6,9,10,11,12?

posted by Phy
11. P, these are the answers-

1.2133e-8
1.21845e-7

posted by Phy
12. E⃗ = 8.6 xˆsin(2πλz + 5.91e16 t) V/m
B⃗ = Bo⃗ sin(2πλz + 5.91e16 t) Tesla

o can you explain the formula what is n, c and omega?

posted by dd
13. a) q2/q1 = R1/R2
b) 0
c) R2/R1

posted by robbo
14. Phy, do you have problem 8?

posted by Jack
15. robbo ppls tell what are the formulas for which you have posted.

posted by P
16. Phy thanks for the ans I have ans for Q3 a=0 and last part =0

posted by P
17. P, just trust me and go for the answers with the solns provided. We barely have time, so let's get together and solve the other remaining questions.

posted by robbo
18. Who's got the capacitor brush problem and the LC circuit???

posted by robbo
19. Q3, 3rd and 4th

I=V/R

posted by Phy
20. Phy I think you are not quite right.

Any right answer for the transient

posted by TA
21. ans for Q3 2
V/R(1-e^-(R*t/L))
5
V/R*e^-(t/(R*C))

posted by Anonymous
22. Q 7 please

posted by me
23. Q7
look at the maxima peak and the location of the minimum. count off the peaks.
( ist maxima and minima.)

Anyone for the capacitor and sphere problem? Thnks.

posted by aristotle
24. Anonymous what is t in Q3 b

posted by P
25. Someone cant help me to resolve a) and c)for the original post Thanks

posted by LittleJohn
26. Answer for a) & c) Q10

posted by lrc
27. answer for c is 3.91

posted by WTH

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