question 1: One electron collides elastically with a second electron initially a

Question

question 1:

One electron collides elastically with a second electron initially at rest. After the collision, the radii of their trajectories are 1.10 cm and 2.30 cm. The trajectories are perpendicular to a uniform magnetic field of magnitude 0.0430 T. Determine the energy (in keV) of the incident electron.

answer_________keV

question 2:

The picture tube in an old black-and-white television uses magnetic deflection coils rather than electric deflection plates. Suppose an electron beam is accelerated through a 52.4-kV potential difference and then through a region of uniform magnetic field 1.00 cm wide. The screen is located 11.0 cm from the center of the coils and is 46.0 cm wide. When the field is turned off, the electron beam hits the center of the screen. Ignoring relativistic corrections, what field magnitude is necessary to deflect the beam to the side of the screen?

answer: ____mT

question 3:

(a) What is the magnitude of the magnetic force on the proton? _________N

(b) What is the proton's acceleration? _______m/s^2

Explanation / Answer

3) F = q v B sin theta

= 1.6 * 10-19 * 4.9 * 106 * 0.200 * sin 59

= 1.34 * 10-13 N

a = F / m = 1.34 * 10-13 / 1.67 * 10-27

a = 8.04 * 10-13 m/s2

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

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