| 12. | As frequency increases, the period ________. |
| Discuss |
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Answer: (a).decreases
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| 13. | Given two sine waves A and B, if the frequency of A is twice that of B, then the period of B is ________ that of A. |
| Discuss |
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Answer: (b).twice
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| 15. | If the maximum amplitude of a sine wave is 2 V, the minimum amplitude is ________ V. |
| Discuss |
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Answer: (c).-2
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| 16. | A signal is measured at two different points. The power is P1 at the first point and P2 at the second point. The dB is 0. This means ________. |
| Discuss |
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Answer: (b).P2 equals P1
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| 17. | ________ is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium. |
| Discuss |
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Answer: (a).Attenuation
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| 18. | ________ is a type of transmission impairment in which the signal loses strength due to the different propagation speeds of each frequency that makes up the signal. |
| Discuss |
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Answer: (b).Distortion
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| 19. | ________ is a type of transmission impairment in which an outside source such as crosstalk corrupts a signal. |
| Discuss |
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Answer: (c).Noise
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| 20. | When propagation speed is multiplied by propagation time, we get the ________. |
| Discuss |
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Answer: (d).distance a signal or bit has traveled
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