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The power amplifier of an AM transmitter has an output power of 50 W and an efficiency of 60% and is collector modulated. How much audio power is required to be supplied to this stage for 100% modulation.The answer to this question is 41.66W but I really can't figure out the solution.
Given the digital filter transfer function H(z)=1-z^-1 , what is the step response (that is, the input to the filter is unit step sequence u(n) ) of the filter A. y(n)= delta(n)+delta(n+1) B. y(n)=u(n-1) C. y(n)=u(n)-u(n-1) D. y(n)=u(n-2)
in a binary communication system a binary 0 is transmitted using an electrical pulse of magnitude 2.5v and a binary 1
Design a first-order digital highpass chebyshev filter (.5-db ripple) with a cutoff frequency of 850 Hz and a sampling frequency of 10 kHz. Determine the transfer function using BLT.
A. Fourier Transform properties (a) If x ( t ) is real and even, show that its Fourier transform is real for all ω (i.e., its imaginary part is identically 0). (b) If x ( t ) is real and odd, show that its Fourier transform is imaginary for all ω (..
a) Draw the circuit diagram of a bridge rectifier made from pn junction diodes that will function as a negative ectifier. Show the path of current flow for both positive and negative Vin. b) Plot the Vin-Vout transfer characteristic of the circuitd..
Current and average power delivered to the load, A load has a 20 ohm resistor and a 4 henry inductor connected in series. It is connected to a power source with v(t)= 100cos50t
1. describe why interrupts are not appropriate for implementing synchronization primitive in multiprocessor systems and
a two port network has the y parameter y1110 y12-20 y222 all in milli mhos find the new y parameter if a 100ohm
A pulse width modulation (PWM) circuit works by varying the duty cycle of the square wave while keeping the period fixed.
To identify the tank, you need to see what kind of barrel is on the tank and Is the beam diverging or collimated leaving the exit aperture of the system
A magnetic dipole mux of infinitesimal radius is located at (1, 0, 0). The magnitude of B at the origin (0, 0, 0) is 2.5 T. Find B in vector form at (3, 0, 0).
How many atoms are found inside a unit cell of a simple cubic, body-centered cubic, and faced-centered cubic crystal How far apart interms of lattice constant a are nearest neighbor atoms in each case, measured from center to center
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