Basic definition of electrical

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  • Electric current
    The movement of electric charges through a medium, such as a wire. Electric current is measured in amperes, or amps. 
  • Voltage
    The force that causes electrons to flow, or the difference in potential energy between two points in a circuit. 
  • Resistance
    A measure of how well an object conducts electricity. Objects with low resistance are good conductors, while objects with high resistance are poor conductors. 
  • Conductors
    Materials that allow electricity to flow through them easily. Most metals are good conductors. 
  • Insulators
    Materials that don't carry electricity well. Rubber and plastics are examples of good insulators. 
  • Ohm's Law
    A formula that describes the relationship between resistance, electro-motive force, and the intensity of current. 
  • Power formula
    A formula that describes the relationship between power, the intensity of current, and electro-motive force. 
  • Like charges repel, unlike charges attract
    A rule that states that positively charged objects attract negatively charged objects, and objects with the same charge repel each other

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