EE204B_Lesson_06_ELectrostatic_Fields-1_

f31 like charges repel repel f12 f13 unlike charges

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Unformatted text preview: the first one is there. + F31 + like charges repel repel F12 F13 unlike charges attract - EE204B Electromagnetics Prof. Yong H. Won Spring 2010 22 Lesson 06 Electric Field Intensity EE204B Electromagnetics Prof. Yong H. Won Spring 2010 23 Lesson 06 Electric Field Intensity EE204B Electromagnetics Prof. Yong H. Won Spring 2010 24 Lesson 06 The units of electric field are Newtons/Coulomb. r ⎡E ⎤ = ⎣⎦ r ⎡ F0 ⎤ ⎣⎦ [ q0 ] N = C Later you will learn that the units of electric field can also be expressed as volts/meter: [E] N V = = C m The electric field exists independent of whether there is a charged particle electric field exists independent of whether there is charged particle around to “feel” it. EE204B Electromagnetics Prof. Yong H. Won Spring 2010 25 Lesson 06 4-3 EE204B Electromagnetics Prof. Yong H. Won Spring 2010 26 Lesson 06 4-4 [Text Practice 4.1] EE204B Electromagnetics Prof. Yong H. Won Spring 2010 27 Lesson 06 Remember: the electric field direction is the the electric field direction is the direction a + charge would feel a force. + A + charge would be repelled by another + charge. Therefore the direction of the electric field is away from positive (and towards negative). EE204B Electromagnetics Prof. Yong H. Won Spring 2010 28 Lesson 06 EE204B Electromagnetics Prof. Yong H. Won Spring 2010 29 Lesson 06 EE204B Electromagnetics Prof. Yong H. Won Spring 2010 30 Lesson 06 EE204B Electromagnetics Prof. Yong H. Won Spring 2010 31...
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This note was uploaded on 05/14/2010 for the course EE EE204 taught by Professor Parkkyungsoo during the Spring '10 term at Korea University.

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