posted 11 months ago

v(t)=4 \cos 2 \pi 5000 t \cdot \sin 2 \pi 10000 t

posted 11 months ago

v(t)=\sum_{n=-\infty}^{\infty} \frac{5|n|}{n^{2}+1} \cdot e^{j 2 \pi 6000 n t}

n=-00if this signal is passed through a band-pass filter with cutoff frequencies fa =10000

\mathrm{HZ} \text { and } f_{C U}=20000 \mathrm{HZ} \text {. }

Plot the spectrum of the input signal from -20000 HZ to 20000 HZ.

c. How much power is contained in the input signal between -20000 HZand 20000 HZ and how much power is contained in the output signal?

b. Write down the equation for the output signal and plot the spectrum of the output signal.

d. What is the output signal bandwidth?

posted 11 months ago

v(t)=\sum_{n=1}^{\infty} \frac{3}{2 n-1} \cos 2 \pi n 3000 t \text { is passed through an ideal low-pass filter with }

cutoff frequency of 11 KHZ.

Plot the spectrum of the input signal up to 20 KHZ.

b. Plot the spectrum of the output signal.

с.What is the output signal bandwidth?

d. Calculate the power contained in the output signal.

posted 1 years ago

posted 1 years ago

A.B= A.B+ A.B+ A.B+ A.B

posted 1 years ago

posted 1 years ago

posted 1 years ago

posted 1 years ago

posted 1 years ago

Using the formula, calculate the time taken for the capacitor to charge to 1/2Vin Given that C=120NF R=47kOhms. Give your answer in milli-Seconds.

V_{c}=V_{i n}\left(1-e^{-\frac{t}{R C}}\right)