33-08_fin - Seat letter and number Physics 33 Final Exam...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Seat letter and number Physics 33 Final Exam Name ________________________ Monday, December 8, 2008 1 This test is closed book, closed notes. You may use a 3” by 5” hand-written card. If any numerical values are given in a problem, a numeric answer is expected. FULL CREDIT WILL NOT BE GIVEN for answers that contain mathematical operations! Do not state the result of a homework, in-class, or textbook problem without proof! For this test, you might need these physical constants: k (Coulomb constant) = 8.9 × 10 9 Nm 2 /C 2 ε 0 (permittivity constant) = 8.85 × 10 –12 C 2 /Nm 2 e (fundamental charge) = 1.6 × 10 –19 C μ (permeability constant) = 1.26 × 10 –6 Tm/A 0 If you run out of room on a page: FLIP your test and continue writing. That is, if you run out of space on page N, continue on the back of page N - 1! This test consists of 6 numbered questions on 8 pages! This cartoon is copyright Randall Munroe and used under a claim of Fair Use. This and other xkcd cartoons can be found online at xkcd.com.
Background image of page 1

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

View Full DocumentRight Arrow Icon
Physics 33 Final Exam Name ________________________ Monday, December 8, 2008 2 1) (15 points) Researchers at AUU (Alternate Universe University) have just announced the invention of the reziztor, a new electronic component. Circuits that contain reziztors work the same way as circuits we have studied, except that the relationship between current i , reziztance R , and applied voltage V is Vai R = , where the constant a has value 1 with appropriate SI units. Show that the equivalent reziztance of two reziztors R and R in parallel is 1 2 () 12 1 22 2 equiv RR R = + .
Background image of page 2
Physics 33 Final Exam Name ________________________ Monday, December 8, 2008 3 2) (20 points) CHOOSE EITHER A OR B!! (Only one will be graded.) A. Long straight wires… 0 i μ = BdA K K i v a) (8 points) Use Ampere’s Law ( ) to show that the magnitude of the magnetic field a distance r from a long straight wire and far from its ends is 00 2 i B r π = .
Background image of page 3

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

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 8

33-08_fin - Seat letter and number Physics 33 Final Exam...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online