hw09 - Version 001 – HW09 – gavrin – (25111) 1 This...

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

View Full Document Right Arrow Icon

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

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

Unformatted text preview: Version 001 – HW09 – gavrin – (25111) 1 This print-out should have 12 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Current in Tungsten Wire 001 10.0 points A 0 . 63 V potential difference is maintained across a 2 . 3 m length of tungsten wire that has a cross-sectional area of 0 . 28 mm 2 and the resistivity of the tungsten is 5 . 6 × 10- 8 Ω · m. What is the current in the wire? Correct answer: A. Drift Velocity of Electrons 002 10.0 points A conductor with cross-sectional area 10 cm 2 carries a current of 17 A. If the concentration of free electrons in the conductor is 9 × 10 28 electrons / m 3 , what is the drift velocity of the electrons? Correct answer: 0 . 00117895 mm / s. Electric Shock 003 (part 1 of 3) 10.0 points The damage caused by electric shock depends on the current flowing through the body; 1 mA can be felt and 5 mA is painful. Above 15 mA, a person loses muscle control, and 70 mA can be fatal. A person with dry skin has amA can be fatal....
View Full Document

This note was uploaded on 04/11/2011 for the course PHYS 251 taught by Professor Rader during the Spring '08 term at IUPUI.

Page1 / 2

hw09 - Version 001 – HW09 – gavrin – (25111) 1 This...

This preview shows document pages 1 - 2. Sign up to view the full document.

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