exam2-practice-dd

exam2-practice-dd - Physics II Exam 1 155 points Name _...

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

View Full Document Right Arrow Icon
Part I. Questions 1-10. 8 points each. Multiple choice : For full credit , circle only the correct answer. For half credit , circle the correct answer and one incorrect answer. For ¼ credit, circle the correct answer and two incorrrect answers. 1 . The curve that best illustrates the relation between the current in a metallic conductor and the potential difference between its terminals is a. 1 b. 2 c. 3 d. 4 e. 5 2 . Two pieces of copper wire have the same length, but wire A has a square cross section of width s whereas wire B has a circular cross section of diameter s . Which of the following statements is true? a. The resistance of both wires is the same. b. The resistivity of both wires is the same. c. Both the resistance and the resistivity of A and B are the same. d. The resistance of A is greater than that of B. e. The resistivity of A is greater than that of B. 3 . In a parallel circuit, the a. current is the same in every branch. b. potential drop is the sum of those in all branches. c. potential drop is the same for each element of the parallel circuit. d. heat generated is the same in all the branches. e. overall resistance is the sum of the individual resistances of the branches. 4 . You want to use three resistors in a circuit. If each of them has a resistance of 2 , the configuration that will give you an equivalent resistance of 3 is a. 1 b. 2 c. 3 d. 4 e. None of these is correct. Page 1 of 6 Physics II Exam 1 155 points Name _______________ Discussion day/time_______________ C u r e n t Potential 1 2 3 4 5 1 2 3 4 A B
Background image of page 1

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

View Full DocumentRight Arrow Icon
5 . A charged particle is fired towards the center of a cubical region of space where there is a uniform magnetic field oriented perpendicular to the initial velocity of the particle. Outside this region, there is no magnetic field.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/08/2010 for the course PHYSC 1220 taught by Professor Feiguin during the Fall '10 term at Wyoming.

Page1 / 6

exam2-practice-dd - Physics II Exam 1 155 points Name _...

This preview shows document pages 1 - 3. Sign up to view the full document.

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