Test 2 - Physics 116 B Sec 2 (Prof. Csorna) 9/30/05 TEST #2...

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

View Full Document Right Arrow Icon
Physics 116 B Sec 2 (Prof. Csorna) 9/30/05 TEST #2 Formulas and Constants:
Background image of page 1

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

View Full DocumentRight Arrow Icon
1. An electron moves from point i to point f, in the direction of a uniform electric field. During this placement: A) the work done by the field is positive and the potential energy of the electron-field system increases B) the work done by the field is negative and the potential energy of the electron- field system increases C) the work done by the field is positive and the potential energy of the electron-field system decreases D) the work done by the field is negative and the potential energy of the electron- field system decreases E) the work done by the field is positive and the potential energy of the electron-field system does not change Ans: B 3. A particle with a charge of 5.5 × 10 –8 C is fixed at the origin. A particle with a charge of– 2.3 × 10 –8 C is moved from x = 3.5 cm on the x axis to y = 4.3 cm on the y axis. The change in potential energy of the two-particle system is: A) 3.1 × 10 –3 J B) –3.1 × 10 –3 J C) 6.0 × 10 –5 J D) –6.0 × 10 –5 J E) 0 Ans: C 10. During a lightning discharge, 30 C of charge move through a potential difference of 1.0 × 10 8 V in 2.0 × 10 –2 s. The energy released by this lightning bolt is:
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 document was uploaded on 09/05/2011.

Page1 / 6

Test 2 - Physics 116 B Sec 2 (Prof. Csorna) 9/30/05 TEST #2...

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