241-29_Lec-17 - Physics 241 Lecture 17 Y E Kim Chapter 29...

Info icon This preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Physics 241 Lecture 17 Y. E. Kim October 26, 2010 Chapter 29, Sections 4 7 October 25, 2010 University Physics, Chapter 25 and 26 1
Image of page 1

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

View Full Document Right Arrow Icon
October 25, 2010 University Physics, Chapter 29 2 Induced Voltage (motional emf) on a Moving Wire in a Magnetic Field (1) Consider a conducting wire of length L moving with constant velocity v perpendicular to a constant magnetic field B as shown The magnetic field exerts a force F on the conducting electrons in the wire, causing them to move downward This motion of the electrons produces a net negative charge at the bottom of the wire and a net positive charge at the top of the wire This charge separation produces an electric field E that exerts a force F on the conduction electrons that tends to cancel the magnetic force
Image of page 2