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Unformatted text preview: yoon (jey283) – Ch18-h2 – turner – (56545) 1 This print-out should have 13 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points In a particular wire in a ciruit, conventional current flows in the +y direction. What is the direction of the electron current in the wire? 1. + x 2. − y 3. − z 4. + z 5. − x 002 10.0 points Given that the electron current through a wire is 4 electrons / s, what is the magnitude of the conventional current through it? Use e = 1 . 6 × 10 − 19 C . Answer in units of A 003 (part 1 of 2) 10.0 points A current-carrying wire oriented north-south and laid over a compass deflects the compass 24 ◦ East. The horizontal component of the Earth’s magnetic field is about 2 × 10 − 5 T . What is the magnitude of the magnetic field made by the current? Answer in units of T 004 (part 2 of 2) 10.0 points What is the direction of the magnetic field made by the current? 1. South 2. West 3. North 4. East 005 (part 1 of 2) 10.0 points A current carrying wire is laid on a table, oriented North-South. Electrons in the wire are flowing South. What is the direction ofare flowing South....
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This note was uploaded on 10/19/2011 for the course PHY 56545 taught by Professor Turner,j during the Fall '11 term at University of Texas.
- Fall '11