lec02 - continuous lines tangential to the electric field...

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

View Full Document Right Arrow Icon
Electric Field Electric field is a field of force that exists in the space surrounding a charge. Another charge placed at any point therein experiences a force. The Electric Field ( ) at a given point is defined as the force ( ) on a positive test charge ( ) at that point divided by that charge Electric field is a vector : i.e the field at any location has both magnitude and direction. Electric field of a point charge q magnitude at a distance r from q is Direction: points away from a positive charge, and toward a negative one. 0 q F E r r = Unit of E : N/C E r F r 0 q 2 r q k E = +
Background image of page 1

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

View Full DocumentRight Arrow Icon
Electric field due to separated charges is the vector sum of the fields due to each of the charges Electric field can be represented by Lines of force
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: continuous lines tangential to the electric field vectors Force on a charge ( ) in an given electric field ( ): For conductors at electrostatic equilibrium: Any excess charge resides on the surface of the conductor The electric field is zero at any point inside a conductor. The conductor shields any charge inside it from electric fields created outside of the conductor. Electric field just outside of the conductor is perpendicular to its surface. + + = 2 1 E E E r r r + 1 E r E r 2 E r 1 q 2 q (Principle of Superposition) Electric Field (Cont) E q F r r = E r q...
View Full Document

Page1 / 2

lec02 - continuous lines tangential to the electric field...

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