4. A signal with power 7 mW is distorted by noise with power 0.002 mW. What is the signal to noise ratio (SNR) in dB?

What is the decibel loss and gain of a signal?         5.a)  Loss and gain of a signal. A signal starts at point A.  As it travels to point B, it loses 8 dB.  At point B, the signal is boosted by 10 dB.  As the signal travels to point C, it loses 7 dB. At point C, the signal is boosted by 10 dB.  As the signal travels to point D, it loses 8 dB. - What is the dB unit? - What is the dB strength of the signal at point D?

The circuit is shown below, Vin is the sinusoidal waveform with magnitude 5V and frequency is 100 Hz, R = 1 k, C = 1 uE, the chip is supplied by + 12 V source. a) What is the waveform of Yout? b) Calculate the magnitude of Vo c) If Vin is triangle waveform, what is the output waveform? -Vout , if Vin is triangle waveform with magnitude of 5 V (peak-to-peak value is 10 V) and frequency is 10 kHz, calculate waveform of you and the magnitude of I/?

When noise mean = 0, what is the noise power equal to? Is it: Select one: a. always the Variance of the noise distribution O b. 0 O c. noise r.m.s.value O d. 9/12

Electronic

1.- The signal to noise ratio (S/N)dB for 3 different medicines turns out to be: (a) a negative value(b) zero(c) a positive valueWhat can be said about the signal strength and noise power in each case?In all 3 cases can the signal be recovered?

50. A signal x(t) = = sinc (150nt) is sampled at a rate of a) 100 Hz, b) 200 Hz, and c) 300Hz. For each of these cases, explain if you can recover the signal x(t) from the sampled signal.

Design an ACTIVE band-pass filter for the midrange part of a loudspeaker so that the bandpass region is 400 Hz-2000 Hz (as defined by the -3dB points). Design the circuit so that the absolute gain is 2. a. Draw the circuit diagram and specify the resistor and capacitor values. Assume you can use either 100, 330, 500, or 1000 Ohm resistors and can select any value of capacitor. b. Sketch the frequency response (Gain [dB] vs. frequency (Hz)). Note that you will need to convert your gain to dB before plotting. Magnitude (dB) 15 10 5 midrange 12 1 -5 -10 -15 -20 -25 10 100 1,000 Frequency (Hz) 10,000 100,000

Determine the total RMS phase deviation produced by a 10-kHz band of random noise with peak voltage Vn = 0.04V and a carrier peak voltage Vc = 4.5Vp

Hello, I got 0.79 for the firt part and 50A for the second part. And for the 3rd part is it triplens that add into the nuetral line for a 2phase system? I 'm hoping to see if I am doing it right. Not sure If I am.  Thank you for the help.