Electric fields

• Electric field

  Region around a charged particle or object within which a force would be exerted on other objects
• Do particles of the same charge attract or repel


  Repel
• Do particles of opposite charge attract or repel

  Attract
• Electrical field lines

  Arrows that show the electric field around an object
• Diagram of electrical field lines around a positive particle

  Arrows are all perpendicular and point away from the particle
• If an object has a strong enough charge what can it do to the surrounding air

  Ionise the air

  The particles in the air lose electrons so they become charged allowing the air to be able to conduct electricity
• Diagram of the electrical field lines around a negative particle

  Arrows are perpendicular

  All arrows point towards particle
• Diagram of the electrical field lines between a positive and negative particle

  Arrows point from positive to negative