Any cross product r rr f qv b rr r f r rr f il b rr

Info iconThis preview shows page 1. Sign up to view the full content.

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

Unformatted text preview: CT r rr F = qv × B rr τ = r ×F r rr F = IL × B rr τ = µ×B r r µ0 I ds × r ˆ dB = 4π r 2 2. Direction of Magnetic Moment Fingers: Current in Loop Thumb: Magnetic Moment 3. Direction of Magnetic Field from Wire Fingers: Magnetic Field Thumb: Current 06 Physics 212 Lecture 14, Slide 17 Physics Calculation Two parallel horizontal wires are located in the vertical (x,y) plane as shown. Each wire carries a current of I =1A flowing in the directions shown. What is the B field at point P? y y I1=1A . 4cm x 4cm I2=1A Front view z 3cm P Side view • Conceptual Analysis – – Each wire creates a magnetic field at P • B from infinite wire: Β = µ0Ι / 2πr Total magnetic field at P obtained from superposition • Strategic Analysis – – :33 Calculate B at P from each wire separately Total B = vector sum of individual B fields Physics 212 Lecture 14, Slide 18 Physics Calculation Two parallel horizontal wires are located in the vertical (x,y) plan...
View Full Document

This note was uploaded on 02/09/2012 for the course PHYSICS 212 taught by Professor Mestre during the Spring '11 term at University of Illinois at Urbana–Champaign.

Ask a homework question - tutors are online