Which method of heat transfer transmits heat from the lower layers of air to the upper layers of air as the lower layers of air
2 answers:
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Velocity is a derived quantity, which is derived from two fundamental quantities ilength ( displacement ) and time
it can be depicted as :
Answer:
b. 1600 watts
Explanation:
Modulation is the process of impressing a low frequency signal unto a high frequency signal so a to transmit over long distance.
If the modulation index (m) for an AM wave is less than 1, modulation would occur with no distortion, if m = 1, modulation occurs but if m > 1, it leads to over modulation and loss in AM envelope.
The total output power of an AM is the sum of the carrier power, upper side band power and lower side band power.
Total output power of an AM
Pc is the carrier power. Given that modulation (m) = 50% = 0.5: