Electric Field

Electric Field

1. Charge (Q) coulomb (c)

   • Like charge repule
   • Unlike charge attract
   • e=1.6x10^-19 c
     • m(electron)=9.11x10^-31 kg
       • m(proton)=m(neutron)=1.67x10^27 kg

2. Strength (E)

   • Definition: is the electrostatic force per unit positive charge that point in the direction as the force.
     • E=F/q
     • E=V/d

3. Electric field lines

   • Definition: the path which a positive charge will move in a electric field
   • From positive to negative
     • No intercept
       • Uniform distribution
         • Perpendicular
           • The closer, the stronger

4. Uniform Electric fileld

   • Definition: has the same strength at all points in the space between plates
     • V=W/Q
   • uniform acceleration in vertical direction
     • uniform velocity in horizontal direction

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