CH18-HW03-FALL2010

CH18-HW03-FALL2010 - 1 2/14/11 CH18-HW03-FALL2010 Rachel...

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

View Full Document Right Arrow Icon
12/14/11 CH18-HW03-FALL2010 1/4 www.webassign.net/web/Student/Assignment-Responses/view_key?dep=3173284 Current Score : 21.5 / 21.5 Due : Sunday, October 23 2011 11:59 PM EDT 1. 2/2 points | Previous Answers MI3 18.7.X.047 A straight wire of length 0.56 m carries a conventional current of 0.9 amperes. What is the magnitude of the magnetic field made by the current at a location 2.5 cm from the wire? Use both the exact formula and the approximate formula to calculate the field. (a) result using exact formula B = 7.17e-6 7.17e-06 T (b) result using approximate formula B = 7.2e-6 7.20e-06 T Read the eBook Section 18.7 2. 12.5/12.5 points | Previous Answers MI3 18.6.X.051 A wire through which a current is flowing lies along the x-axis as shown. Connecting wires which are not shown in the diagram connect the ends of the wire to batteries (which are also not shown). Electron current flows through the wire in the -x direction, as indicated in the diagram. To calculate the magnetic field at location A due to the current in the wire, we divide the wire into pieces, approximate each piece as a point charge moving in the direction of conventional current, and calculate the magnetic field at the observation location due only to this piece; then add the
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

CH18-HW03-FALL2010 - 1 2/14/11 CH18-HW03-FALL2010 Rachel...

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