electrical circuits

• give requirements for electrical charge to flow 


  closed circuit with source of potential difference
• describe current 


  flow of electrical charge
• give measurements of electric current

  amperes - A
• describe potential difference 


  driving force to electric current
• give measurements of potential difference

  volts - V
• describe resistance 


  anything opposing electric current
• give measurements of resistance

  ohms
• describe affect of resistance on current

  higher resistance - smaller current