Across
- 4. a measuring instrument used to measure the current in a circuit.
- 6. the difference of electrical potential between two points.
- 9. a characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons.
- 10. the magnetic effect of electric currents and magnetic materials
- 12. attraction or repulsion that arises between electrically charged particles because of their motion
- 14. A complex of structures, machinery, and associated equipment for generating electric energy from another source of energy, such as nuclear reactions or a hydroelectric dam
- 16. an attractive or repulsive force between two charged objects
- 17. a closed circuit in which the current divides into two or more paths before recombining to complete the circuit
- 19. a system of electrical conductors and components forming a complete and closed path.
- 21. relating the voltage difference between two points, the electric current flowing between them, and the resistance of the path of the current
- 22. an electromotive force or potential difference expressed in volts.
- 23. an object or type of material that allow the flow of electrical current in one or more directions
- 24. a quantity representing the rate of flow of electric charge, usually measured in amperes.
- 25. an instrument designed to measure electric current, voltage, and usually resistance, typically over several ranges of value.
Down
- 1. an instrument used for measuring electrical potential difference between two points in an electric circuit
- 2. a stationary electric charge, typically produced by friction, that causes sparks or crackling or the attraction of dust or hair.
- 3. a combination of two or more cell electrically connected to work together to produce electric energy
- 5. a closed circuit in which the current follows one path
- 6. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
- 7. a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.
- 8. a device having a designed resistance to the passage of an electric current.
- 11. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
- 13. the degree to which a substance or device opposes the passage of an electric current, causing energy dissipation. Ohm's law resistance (measured in ohms) is equal to the voltage divided by the current.
- 15. an apparatus for reducing or increasing the voltage of an alternating current.
- 18. a material of such low conductivity that the flow of electric current through it is negligible.
- 20. a physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.
- 26. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.