EE325_quiz_8_sol_Yilmaz

EE325_quiz_8_sol_Yilmaz - NAME: _ Solution 1) Let μ = 3 ×...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
NAME: _____________ Solution I EE325-Fall 2009 Quiz 8 1) Let 5 31 0 H / m μ , 10 1.2 10 F/m ε , and 0 σ = everywhere. If 10 ˆ 2cos(10 ) A/m z tx β =− Ha , find the following. Hint: Point form of Maxwell’s equations in a source-free region are: 0, / t ∇⋅ = ∇× =−∂ DE B , 0, = B / t = ∂ HD . a) B (1 point) b) D (4 points) c) E (2 points) d) β (3 points) See HW 9 for solution. EE325-Fall 2009 Quiz 8 1) Consider a metallic conductor with 12 0 8.85 10 F/m εε == × , 7 0 41 0 H /m μμ π , 7 10 S/m σ = that is carrying a current at 60 Hz with current density 62 ˆ 10 sin(120 120 ) A/m x tz π Ja . Hint 1: Point form of Maxwell’s equations are: , / v t ρ = B , = B / t = +∂ HJ D . Hint 2: σ = J E in the time varying case. a) Find the electric field strength in the conductor (1 point) 1 ˆ 10 sin(120 120 ) V/m x π σ J Ea b) Find the magnetic flux density in the conductor (3 points) 1 1 1 /( , , ) ˆ / 120 10 cos(120 120 ) ˆ 120 10 cos(120 120 ) ( , , ) ˆ 10 sin(120 120 ) ( , , ) yx y y td t x y z Ez t z d t x y z tzx y z π π π π ∂ ⇒ =− ∇× + = ∂ =− × + + EB B E C Ba C a BC
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/07/2010 for the course EE 325 taught by Professor Brown during the Fall '08 term at University of Texas.

Page1 / 2

EE325_quiz_8_sol_Yilmaz - NAME: _ Solution 1) Let μ = 3 ×...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online