Class Examples for Chapter 28

# Class Examples for Chapter 28 - Class Examples for Chapter...

This preview shows pages 1–2. Sign up to view the full content.

1 Class Examples for Chapter 28 11. Since the total force given by F e E v B d i vanishes, the electric field E must be perpendicular to both the particle velocity v and the magnetic field B . The magnetic field is perpendicular to the velocity, so v B has magnitude vB and the magnitude of the electric field is given by E = vB . Since the particle has charge e and is accelerated through a potential difference V , 2 / 2 mv eV and 2 . v eV m Thus,  19 3 5 27 2 1.60 10 C 10 10 V 2 1.2 T 6.8 10 V m. 9.99 10 kg eV E B m 20. Combining Eq. 28-16 with energy conservation ( eV = 1 2 m e v 2 in this particular application) leads to the expression r = m e e B 2 eV m e which suggests that the slope of the r versus V graph should be 2 2 / e m eB . From Fig. 28-39, we estimate the slope to be 5 10 5 in SI units. Setting this equal to 2 2 / e m eB and solving we find B = 6.7 10 2 T.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern