Q6. Ask for two numbers. If the first one is larger than the second, display the second number first and then the first number,
1 answer:
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Answer:
Explanation:
The frequency components in the message signal are
f1 = 100Hz, f2 = 200Hz and f3 = 400Hz
When amplitude modulated with a carrier signal of frequency fc = 100kHz
Generates the following frequency components
Lower side band
Carrier frequency 100kHz
Upper side band
After passing through the SSB filter that filters the lower side band, the transmitted frequency component will be
At the receive these are mixed (superheterodyned) with local ocillator frequency whichh is 100.02KHz, the output frequencies will be
After passing through the SSB filter that filters the higher side band, the transmitted frequency component will be
At the receive these are mixed (superheterodyned) with local oscillator frequency which is 100.02KHz, and then fed to the detector whose output frequencies will be
Given:
voltage, V = 3600V
step-up voltage, V' = 100000 V
Resistance of line,
Solution:
To calculate % heat loss in long distance power line:
Power produced by AC generator, P = W
P = 180000 W = 180 kW
At step-up voltage, V = 100000V or 100 kV
current, I =
I =
I = 1.8 A
Power line voltage drop is given by:
Power dissipated in long transmission line
Power dissipated in long transmission line = 324 W
% Heat loss in power line,
% Heat loss in power line,