{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lecture%2020%202220%20Spring%202009

# Lecture%2020%202220%20Spring%202009 - Announcements and...

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

1 Announcements and Reminders Homework 12 is due tomorrow. HW 13 is due Friday. There is a quiz in recitation this week. Turn in a piece of paper with name and responses if you don’t have your clicker with you today, or if you haven’t given me your clicker ID yet Biot-Savart Law 2 4 ˆ I o μ d d π r s r B o = 4 x 10 -7 T . m / A 2 4 ˆ I o μ d π r s r B (permeability of free space) Example Each of two long straight parallel wires separated by a distance of 16 cm carries a current of 17 A in the same direction. What is the magnitude of the resulting magnetic field at a point that is 12 cm from each wire? B for a Curved Wire Segment Find the field at point O due to the wire segment I and R are constants will be in radians 4 I o μ B θ πR Example B for a Circular Loop of Wire Consider the previous result, with = 2 This is the field at the center of the loop 2 4 4 2 I I I o o o μ μ μ B θ π πR πR R

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

View Full Document
2 B for a Circular Current Loop The loop has a radius of R and carries a
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}