Electricity and Magnetism

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Across
  1. 1. device that transforms or converts chemical energy into electrical energy or electric current.
  2. 3. symbol used to represent a component of a circuit in a circuit diagram.
  3. 4. An instrument for measuring electric current in amperes
  4. 7. electrical device that has a complete or continuous path that electricity can flow through.
  5. 8. flow of electric charges, usually in wires or other conductors. Measured in amperes (A).
  6. 10. a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.
  7. 12. difference in the electric potential between two locations.
  8. 14. unit of electric potential and electric potential difference.
  9. 15. instrument to measure the voltage, or potential difference, across one or more components of a closed circuit.
  10. 17. safety device in a circuit that stops the flow of current when a maximum current is exceeded.
  11. 20. material that is a poor conductor of electric current.
  12. 21. The process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
  13. 24. Flow of electric current through a conductor, such as a wire.
  14. 27. unit of electric current, equivalent to one coulomb of charge per second.
  15. 29. sum of all currents entering a junction must equal the sum of all currents exiting that junction.
  16. 31. An electric current that reverses its direction many times a second at regular intervals, typically used in power supplies.
Down
  1. 2. An electric generator is a device that converts mechanical energy to electrical energy.
  2. 5. electric circuit where the electric current can take more than one path.
  3. 6. The opposite of a closed circuit.
  4. 9. electric circuit where the resistance is very low or near zero
  5. 11. electric circuit where the electric current has only one path.
  6. 13. The opposite of an open circuit.
  7. 16. opposition that a conducting material or device offers to resist the flow of current. Measured in ohms (Ω).
  8. 18. electrical device that resists the flow of electric current.
  9. 19. instrument with different settings that can measure current (ammeter), voltage (voltmeter), or resistance (ohmmeter).
  10. 22. unit of electrical resistance.
  11. 23. measure of consumed energy typically used by power companies.
  12. 25. Production of an electric current by changing the magnetic field enclosed by an electrical circuit.
  13. 26. An electric current flowing in one direction only.
  14. 28. Named in honor of Georg Simon Ohm.
  15. 30. amount of electrical potential energy that each unit of electric charge has.