# HW10 - Electromagnetics HW.10 Group.3 Deadline 5 10 89 1 In...

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

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

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

Unformatted text preview: Electromagnetics HW.10 Group.3 Deadline 5 / 10 / 89 1. In this problem we want to find the magnetic energy in the most general form, suppose that there are n loops of current, i ( t ) = ( i 1 ( t ) i 2 ( t ) ... i n ( t )) T , which have the steady amounts of I = ( I 1 I 2 ... I n ) T . Use the equation Φ( t ) = Li ( t ) and V ( t ) = L di ( t ) dt , which Φ is the magnetic flux and L is the matrix of inductance to show that W m = 1 2 n X i =1 n X j =1 L ij I i I j 2. A long coaxial cable carries current I (the current flows down the surface of the inner cylin- der, radius a , and back along the outer cylinder, radius b ). a) Find the magnetic energy stored in a section of length l . b) Use the equation W m = 1 2 LI 2 to find the self inductance. 3. Find the mutual inductance of a long wire carries current I 1 and the the loop ABCD which has the current I 2 . Also calculate the term caused by the mutual energy stored in the system.(hint: ∇ ....
View Full Document

## This note was uploaded on 12/23/2010 for the course ELECTRICAL EE251202 taught by Professor Rejaei during the Fall '10 term at Sharif University of Technology.

### Page1 / 3

HW10 - Electromagnetics HW.10 Group.3 Deadline 5 10 89 1 In...

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

View Full Document
Ask a homework question - tutors are online