Electrical Quantities and Ohm's Law

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Across
  1. 4. Generally connected to the case of equipment and provides a low-resistance path to ground.
  2. 6. Measurement unit of resistance to current flow. Named after a German scientist.
  3. 7. Measure of charge. Can be thought of as a quantity measure of electrons. It is the charge transferred by a current of 1 ampere in one second.
  4. 10. Also referred to as voltage, potential difference or electrical pressure. It is the force that pushes the electrons through a conductor.
  5. 11. States that current flows from the most positive point to the most negative point.
  6. 12. The rate of work per second. Equals 550 ft-lbs/s or 33,000 ft-lbs/min or 746 Watts
  7. 13. Equal to 1 coulomb per second. Measures the amount of electricity that is flowing through a circuit.
  8. 16. The amount of potential necessary to cause 1 coulomb to produce 1 joule of work. Can be referred to as electrical pressure.
  9. 17. SI equivalent of the watt. Defined as 1 newton-meter. Can also be expressed as the amount of work done by 1 coulomb flowing through a potential of 1 volt or as the amount of work done by 1 watt for 1 second.
  10. 18. The opposition to current flow in an AC or DC circuit.
  11. 19. Similar to resistance. Most often used in calculations of AC rather than DC.
Down
  1. 1. States that because electrons are negative particles, current flows from the most negative point in the circuit to the most positive. More widely accepted as being the correct way electricity flows.
  2. 2. Referred to as the grounded conductor. Provides the return path and completes the circuit back to the power source.
  3. 3. The amount of heat required to raise the temperature of 1 pound of water 1 degree Fahrenheit.
  4. 5. In its simplest form states that it takes 1 volt to push 1 ampere thorough 1 ohm.
  5. 8. Often referred to as a closed circuit. This must exit before current can flow through a circuit.
  6. 9. Also referred to as voltage. It is the difference between the positive and negative charges developed by a power source.
  7. 14. Measurement of the amount of power that is being used in a circuit. Named after an English scientist.
  8. 15. For this to exist, there must be some type of energy change or conversion. It describes the amount of electrical energy inverted to some other form. Measured in Watts.