electricity 1

Across

1. / a wire or bundle of wires that conducts electricity
6. / the capacity of a body or system to do work
7. / a continuous electric current that periodically reverses direction, usually sinusoidally
10. / any of a number of devices that produce illumination
14. / a faulty or accidental connection between two points of different potential in an electric circuit, It can cause damage to the components if the circuit is not protected by a fuse
15. / a wire which is connected to the earth to protect persons
16. / the extremity of the length of something, such as a road, line, etc.
19. / the derived SI unit of electric charge; the quantity of electricity transported in one second by a current of 1 ampere.
23. / an insufficiency or shortage
24. / a device that under abnormal conditions, such as a short circuit, stops the flow of current in an electrical circuit
25. / the average, the result obtained by adding the numbers or quantities in a set and dividing the total by the number of members in the set
28. / a wire carrying an electric current
29. / a device for accumulating electric charge, usually consisting of two conducting surfaces separated by a dielectric
31. / to mark (the scale of a measuring instrument) so that readings can be made in appropriate units
34. / to provide for adequately; make good; satisfy
35. / an ampere
37. / the number of times that a periodic function or vibration repeats itself in a specified time, often 1 second. It is usually measured in hertz.
39. / a device that transfers an alternating current from one circuit to one or more other circuits, usually with an increase (step-up transformer) or decrease (step-down transformer) of voltage.
41. / a complete path through which an electric current can flow
43. / a configuration of two or more components connected in a circuit so that the same current flows in turn through each of them (esp. in the phrase in series)
45. / an electrical conductor wound into the form of a spiral, sometimes with a soft iron core, to provide inductance or a magnetic field
47. / to determine the size, amount, etc., of by measurement
49. / a continuous electric current that flows in one direction only, without substantial variation in magnitude
50. / an electrical component designed to introduce a known value of resistance into a circuit
53. / a point in a wiring system from which current can be taken to supply electrical devices
54. / a knot, swelling, or knob
56. / a quantity of electricity determined by the product of an electric current and the time for which it flows, measured in coulombs
58. / alternative energy
59. / any phenomenon associated with stationary or moving electrons, ions, or other charged particles

Down

2. / the basic SI unit of electric current;
3. / voltage, electromotive force, or potential difference
4. / a protective device for safeguarding electric circuits containing a wire that melts and breaks the circuit when the current exceeds a certain value
5. / an instrument for producing a representation of a rapidly changing quantity on the screen
8. / a closed electric or magnetic circuit through which a signal can circulate, as in a feedback control system
9. / the main distribution network for water, gas, or electricity
11. / a conductor by which current enters or leaves at such a point
12. / a wire carrying an electric current back
13. / to link or be linked together; join; fasten
17. / a measure of the rate of doing work expressed as the work done per unit time. It is measured in watts, horsepower, etc.
18. / an electrical machine that generates an alternating current
20. / the derived SI unit of electrical resistance; the resistance between two points on a conductor when a constant potential difference of 1 volt between them produces a current of 1 ampere.
21. / an electromotive force or potential difference expressed in volts
22. / any material or device that insulates, esp. a material with a very low electrical conductivity or thermal conductivity or something made of such a material
23. / to move or progress freely as if in a stream
26. / a mechanical, electrical, or electronic device for opening or closing a circuit or for diverting a current from one part of a circuit to another
27. / having zero charge or potential
30. / the square root of the average of the squares of a set of numbers or quantities
32. / an electrical test instrument offering measurement of several values, usually voltage, current, and resistance
33. / any device for converting mechanical energy into electrical energy by electromagnetic induction, esp. a large one as in a power station
36. / separated by an equal distance at every point; never touching or intersecting
38. / the engine, esp. an internal-combustion engine, of a vehicle
40. / a panel exposed to radiation of heat from the sun, used to heat water or, when mounted with solar cells, to produce electricity direct, esp. for powering instruments in satellites
42. / a substance, body, or system that conducts electricity, heat, etc.
44. / two or more primary cells connected together, usually in series, to provide a source of electric current
46. / the derived SI unit of frequency; the frequency of a periodic phenomenon that has a periodic time of 1 second; 1 cycle per second.
48. / to supply, provide, or stock
51. / the equipment in a telephone, radio, or television that receives incoming electrical signals or modulated radio waves and converts them into the original audio or video signals
52. / a malleable ductile reddish metallic element occurring as the free metal,
55. / a cable consisting of several metal strands twisted together
57. / an instrument for measuring an electric current in amperes