Electrical terms you should know

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Across
  1. 4. a measure of the opposition to current flow in an electrical circuit
  2. 6. is the return path for an electrical circuit made by connections to ground at each end (2 words)
  3. 8. a common return path for electric current, or a direct physical connection to the Earth
  4. 11. all components are connected end-to-end to form a single path for current flow (2 words)
  5. 15. used in electrical equipment to support and separate electrical conductors without allowing current through themselves
  6. 17. is a type of fault in which the unintentional pathway of the straying electrical current flows directly to the earth (2 words)
  7. 18. is an imbalance of electric charges within or on the surface of a material or between materials (2 words)
  8. 19. an electrical safety device that operates to provide overcurrent protection of an electrical circuit.
  9. 20. is a measurement of electrical resistance between two points of a conductor
Down
  1. 1. is the volume (or quantity) of electrical current flowing through a circuit.
  2. 2. an electrical path that branches so that the current divides and only part of it flows through any branch (2 words)
  3. 3. are materials which have a conductivity between conductors (generally metals) and nonconductors or insulators (2 words)
  4. 5. a condition where the current flow through a conductor is interrupted by a missing or damaged component (2 words)
  5. 7. a complete path for electrical current flowing from the power source to the equipment and back to the power source
  6. 9. the current in a circuit is equal to the potential difference divided by the resistance of the circuit (2 words)
  7. 10. a substance or material that allows electricity to flow through it
  8. 12. is an electrical safety device designed to protect an electrical circuit from damage caused by overcurrent (2 words)
  9. 13. an electric current that is uni-directional (2 words)
  10. 14. is an electrical circuit that allows a current to travel along an unintended path with no or very low electrical impedance
  11. 16. an electric current that periodically reverses its direction (2 words)