Homework #29

# Choose the unit vector corresponding to this

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

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ld in the region where the electric ﬁeld is nonzero, what would be the direction of the magnetic ﬁeld? 007 (part 3 of 3) 10.0 points Find Bz . y 3 t1 x What is the direction of propagation of the electromagnetic wave? Choose the unit vector corresponding to this direction. 2. 0, 1, 0 3. 1, 0, 0 4. 0, 0, 1 5. 0, 0, −1 correct 6. 0, −1, 0 Explanation: We know that E × B points in the direction of propagation. Pointing your thumb along the −y axis to indicate the direction of propagation and pointing your ﬁngers along the −x direction to indicate the direction of the electric ﬁeld, the right-hand rule indicates that the magnetic ﬁeld must point along the −z axis. 010 (part 1 of 2) 10.0 points A pulse of electromagnetic radiation is propagating in the +y direction. You have two devices that can detect electric and magnetic ﬁelds. You place detector 1 at location 1. −1, 0, 0 2. 0, 0, −1 0, −5, 0 m and detector 2 at location 0 , 5 , 0 m. 3. 0, 1, 0 4. 0, −1, 0 correct 5. 0, 0, 1 6. 1, 0, 0 Exp...
View Full Document

## This note was uploaded on 01/22/2014 for the course PHY 303L taught by Professor Turner during the Summer '08 term at University of Texas at Austin.

Ask a homework question - tutors are online