Across
- 3. a device having a designed resistance to the passage of an electric current.
- 4. an object or type of material that allows the flow of charge in one or more directions.
- 6. an electromotive force or potential difference expressed in volts.
- 8. an electric current flowing in one direction only.
- 9. the perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction.
- 12. the circuit elements are arranged in a single path.
- 14. the hard fibrous material that forms the main substance of the trunk or branches of a tree or shrub, used for fuel or timber.
- 17. relating to or denoting the generation of electricity using flowing water (typically from a reservoir held behind a dam or other barrier) to drive a turbine that powers a generator.
- 19. a combustible black or dark brown rock consisting mainly of carbonized plant matter, found mainly in underground deposits and widely used as fuel
- 20. a liquid mixture of hydrocarbons that is present in certain rock strata and can be extracted and refined to produce fuels including gasoline, kerosene, and diesel oinatural
- 21. electric or motive power generated by a nuclear reactor.
- 24. the SI base unit of electrical current.
- 25. an electric current that reverses its direction many times a second at regular intervals, typically used in power supplies.
Down
- 1. relating to or denoting a mechanical device which is electrically operated.
- 2. a board for making an experimental model of an electric circuit.
- 5. a fundamental two-dimensional circuit representation showing the functionality and connectivity between different electrical components.
- 7. renewable energy from plants and animals
- 10. an electrical path that branches so that the current divides and only part of it flows through any branch.
- 11. relating to or produced by the internal heat of the earth.
- 13. relating to or determined by the sun.
- 15. a force that counteracts the flow of current.
- 16. a light-emitting diode (a semiconductor diode which glows when a voltage is applied).
- 18. flammable gas, consisting largely of methane and other hydrocarbons, occurring naturally underground (often in association with petroleum) and used as fuel.
- 22. belonging to the present time; happening or being used or done now.
- 23. an instrument designed to measure electric current, voltage, and usually resistance, typically over several ranges of value.