0000 phys 2426 Midterm web sample.docx

# 0000 phys 2426 Midterm web sample.docx - Physics 2426...

• Test Prep
• 11

This preview shows pages 1–3. Sign up to view the full content.

Physics 2426 Midterm Chapters 21 - 29 Brad Moore – Web Sample (Summer 2010) Name: Section: Select the response that best answers the given statement. Be sure to write all final multiple choice answers on your Scantron answer sheet. 1) When atom A loses an electron to atom B, A) atom A acquires more neutrons than atom B. B) atom A becomes a negative ion and atom B becomes a positive ion. C) atom A acquires less neutrons than atom B. D) atom A becomes more negative than atom B. E) atom A becomes a positive ion and atom B becomes a negative ion. 2) Three point charges are located at the following positions: Q 1 = 2.00 μC at x = 1.00 m; Q 2 = 3.00 μC at x = 0; Q 3 = -5.00 μC at x = -1.00 m. What is the magnitude of the force on the 3.00-μC charge? A) 5.40 × 10 -2 N B) 0.158 N C) 0.189 N D) 0.135 N E) 8.10 × 10 -2 N 3) Consider a spherical Gaussian surface of radius R centered at the origin. A charge Q is placed inside the sphere. Where should the charge be located to maximize the magnitude of the flux of the electric field through the Gaussian surface? A) at x = 0, y = 0, z = R/2 B) at x = 0, y = R/2, z = 0 C) at x = R/2, y = 0, z = 0 D) at the origin E) The flux does not depend on the position of the charge as long as it is inside the sphere 4) A charge q = 2 μC is placed at the origin in a region where there is already a uniform electric field = (100 N/C) î. Calculate the flux of the net electric field through a Gaussian sphere of radius R = 10 cm centered at the origin. A) 5.52 × 10 5 N m 2 /C B) 0.565 × 10 5 N m 2 /C C) 2.26 × 10 5 N m 2 /C D) 1.13 × 10 5 N m 2 /C E) 0 1

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

FIGURE 23-1 5) Fig. 23-1 shows equipotentials surrounding a pair of charges QA and QB. The value of the potential half-way between the charges is indicated. Which of the statements below applies to the charges? A) Nothing can be said about the charges.
This is the end of the preview. Sign up to access the rest of the document.
• Fall '08
• Sherman

{[ 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