The unit used to measure the power level of current transmission were:
a. dB
b. N (neper)
c. W
d. mW When alternating current transmission on line information will appear the special phenomenon: a. Surface effects. b. Adjacent metal effect. c. The proximity effect. d. Interference. When alternating current transmission over communication lines, AC resistance will increase when higher-frequency signal: a. Yes. b. Wrong.
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