electricity

• In very simple terms, the battery pushes the current around a circuit. The current Transfers energy to the bulb. Once enough Energy has been transferred the bulb will start to glow.
• Electricity is made of electrons moving

  Electrons flow from negative to positive

  Current flows from positive to negative
• Current is the flow of charged particles ( electrons )

  A cluster of charges is known as a coulomb.
• Q = I x t

  Charge (coulombs, C) = Current (amps, A) x Time (s)
• V = E/Q


  Potential Difference = Energy / Charge (C)
• V = I x R


  Potential Difference = Current (Amps) x Resistance (ohms)