| 41. |
Voltage is sometimes referred to as EMF, or Electromotive...? |
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| 42. |
The input used by an antenna or cable to a TV set uses frequencies called...? |
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| 43. |
What is the term to ask the computer to put information in order numerically or alphabetically? |
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| 44. |
Larger buildings may be supplied with a medium voltage electricity supply, and will required a substation or mini-sub. What is the main item of equipment contained in these? |
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| 45. |
What was the active medium used in the first working laser ever constructed? |
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