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Electrostatic:Coulomb’s Law

Chapter 21 Halliday-Resnick 9th Ed.

Thursday, 26 January 2012

Static electricity

Same electrical sign :repels

Opposite electrical sign :attracts

Basic principal

A, B, D : charged plateC : neutral (metal)

? ?

= ̂Coulomb’s Law

= ̂Newton’s Law

Draw vector forcewith the tail onthe particle

= 1= 8,99 × 10 . /

= 2(0, 0)

= 2(2, 0)

= −2(2, -3)

=?

{Electric Fields

Chapter 22 Halliday-Resnick 9th Ed.

=

= ̂:Due to a point charge

= = ̂

= 2(0, 0)

= 2(2, 0)

= −2(2, -3)

=?

Continuous Charge?