{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lecture25

# Lecture25 - Physics 42 Lecture 25 Announcements Lab on...

This preview shows pages 1–9. Sign up to view the full content.

Physics 42 March 10, 2006 Physics 42 Lecture 25 Announcements Lab on March 20: Electric guitar continued Quiz on this week’s material on March 22 Assignment 8 homework due on March 23 Today Farady’s law: some more examples Re-statement of Faraday’s Law as Maxwell’s 4th field equation Eddy currents Magnetic inductance

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

View Full Document
Physics 42 March 10, 2006 Some more examples:
Physics 42 March 10, 2006 Example 1 Pull a square wire loop (l x w) with constant velocity v through a magnetic field B as shown below. Find the emf generated in the coil versus position x.

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

View Full Document
Physics 42 March 10, 2006 Example 1 The magnetic flux varies as follows: Using then the emf is:
Physics 42 March 10, 2006 Example 2 Illustration of the generation of AC voltage with a coil (area A) rotating with constant angular velocity ω ο . (t) = A B ω ο sin ω ο t

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

View Full Document
Physics 42 March 10, 2006 Example 2 Illustration of the generation of DC voltage using slip rings to half-wave rectify the voltage.
Physics 42 March 10, 2006 Maxwell’s fourth field equation ε r E d r l C = d Φ B dt

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

View Full Document
Physics 42 March 10, 2006 Maxwell’s fourth field equation: Faraday’s Law
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 20

Lecture25 - Physics 42 Lecture 25 Announcements Lab on...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online