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Department of Electrical Engineering and Computer Science
EEL 3470 Electromagnetic Fields
Homework Set No. 1
Please turn in your answers, MatLab files and results.
Each group should turn in ONLY one set of homework.
Print these pages and write your answers. After that, attach your MatLab files and results.
Names: __________________
___________________
___________________
Problem 1. (1) Lonngren 1.1.1;
(2) Lonngren 1.1.2; (also illustrate
)
(3) Find the angle between vectors
A
and
B
.
Answer: (1)
(2)
(3)
Problem 2. (1) Find the area of triangle PQS where P, Q, and S are at (1, 2, 3), (4, 2,5)
and
(2,1,4), also illustrate the triangle;
(2) Find the three inner angles of this triangle;
(3) Find the vertical distance from point S to line PQ;
(4) Find a unit vector that is perpendicular to triangle PQS;
(5) Find the length of the perimeter of the triangle;
(6) If E is the midpoint between P and Q, find the unit vector from S to E;
(7) If point D is at (0,0,1), find the
volume of the tetrahedral PQSD.
Answer: (1)
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 Fall '11
 WU
 Electromagnet

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