Electric and Magnetic Fields

Card Set Information

Electric and Magnetic Fields
2014-03-13 07:32:21
A2 Physics

General questions on A2 Electric and Magnetic Fields
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user jjeffery on FreezingBlue Flashcards. What would you like to do?

  1. What is Coulombs Law?
    The force between two point charges (Q1 & Q2 ) placed r meters apart in a vacuum is given by


  2. Electric Field Lines
    These show the 'direction in which a free positive charge will move'.

    The electric field lines between two parallel charged plates are parallel and run +ve to -ve

    The electric field lines from a positive point charge lie in a 'star' pattern (pointing outwards)
  3. Radial Electric Field
    the electric field created by a pont charge are referred to as 'radial' and are also 'inverse square'. The E-field strength decreases as 1/distance2 . (So doubling the distance will QUARTER the field-strength.)

  4. Uniform electric field
    This occurs between two charged parallel plates. The E-field strength has the same value everywhere and is given by (V=Pd across plates and d= separation of the two plates.)

  5. State the definition for capacitance
    This is the charge required to raise the voltage across the capacitor by one volt. C=Q/V. Where Q=charge and V= potential difference. Unit: Farad (or Coulomb per volt)

What would you like to do?

Home > Flashcards > Print Preview