How can the strength of an electric field be quantified?

1 Answer
Mar 9, 2018

#E=V/d=F/Q_2=(kQ_1)/r^2#, where:

  • #E# = Electric field strength (#NC^-1 or Vm^-1#)
  • #V# = electric potential
  • #d# = distance from the point charge (#m#)
  • #F# = Electrostatic force (#N#)
  • #Q_1 and Q_2# = charge on objects #1# and #2# (#C#)
  • #r# = distance from point charge (#m#)
  • #k# = #1/(4piepsilon_0)=8.99*10^9Nm^2C^-2#
  • #epsilon_0# = permittivity of free space (#8.85*10^-12# #Fm^-1#)