Electrical Current

• What is current?

  The flow of electrical charge
• What is the equation for charge flow

  Q =It

  Q is charge flow, I is current, t is time
• In a closed loop what is the current like?

  It is the same value at any point
• What does the current depend on?

  The resistance of the component and the potential difference across the component
• The greater the resistance of the component, the smaller the current for a given potential difference across the component
• What is the equation for potential difference?

  V = IR