Ch18-h3-problems-1

Ch18-h3-problems-1 - yoon(jey283 – Ch18-h3 – turner...

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: yoon (jey283) – Ch18-h3 – turner – (56545) 1 This print-out should have 14 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 (part 1 of 2) 10.0 points A straight wire of length 0 . 62 m carries a conventional current of 0 . 9 A. What is the magnitude of the magnetic field made by the current at a location that is a perpendicular distance 3 cm from the center of the wire? Taking μ 4 π = 1 × 10 − 7 T · m / A , first use the approximate formula to find the field. Answer in units of T 002 (part 2 of 2) 10.0 points Now use the exact formula. Answer in units of T 003 (part 1 of 2) 10.0 points When you bring a current-carrying wire down onto the top of a compass, aligned with the original direction of the needle and 6 mm above the needle, the needle deflects by 13 degrees, as in the figure below. 13 ◦ B Earth Wire Assuming the compass needle was origi- nally pointing toward the north, what direc- tion is the conventional current traveling in the wire, and what is the direction of the force on the compass needle due to the mag- netic field caused by the current in the wire? 1. North, West 2. North, East 3. South, West 4. South, East 004 (part 2 of 2) 10.0 points Calculate the amount of current flowing in the wire. The measurement was made at a location where the horizontal component of the Earth’s magnetic field is B Earth = 2 × 10 − 5 T . Use μ 4 π = 1 × 10 − 7 A . 005 (part 1 of 2) 10.0 points In the figure below, a long current-carrying wire, oriented north-south, lies on a table (it is connected to batteries that are not shown)....
View Full Document

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.

Page1 / 4

Ch18-h3-problems-1 - yoon(jey283 – Ch18-h3 – turner...

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