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Consider the system shown in Figure 3.72. Assume that the average value of m (t) is zero and that the maximum
a. Write the equation for y (t).
b. Describe the filter that yields an AM signal for g (t). Give the necessary filter type and the frequencies of interest.
c. What value of M yields a modulation index of 0.1?
d. What is an advantage of this method of modulation?
The fourier transform of the triangular pulse x(t) is expressed as: X(w) = 1/w^2(e^jw - jwe^jw - 1) Use this information, and the time-shifting and time-scaling properties to find the fourier transform of the signal: y = x, -1
An 80 kHz sinusoidal voltage has zero phase angle and a maximum amplitude of 25 mV. When this voltage is applied across the terminals of a capacitor, the resulting steady state - state current has a maximum amplitude of 628.32 microamps.
there is another issue associated with dams and fish and that is permitting enough flow to maintain downstream
What is motor? detailed analysis of dc motor.
Describe what happens when a typical AM modulator is overmodulated,and explain why overmodulation is undesirable.
A harmonic wave traveling along a string is generated by an oscillator that completes 180 vibrations per minute. If it isobserved that a given crest, or maximum, travels 300 cm in 10s,what is the wavelength
A penstock is used to bring water from behind a dam into a turbine. the penstock is 6m in diameter and moves water at a rate of 500 m^3/s. Compute the mechanical power entering the turbine.
Given N-type silicon sample with uniform donor doping of (a) Nd= 1018/cm3 , (b) Nd= 1019/ cm3 and (c) Nd= 106/cm3, calculate the Fermi levels at room temperature assuming full ionization for all cases.
When silicon atoms combine to form a solid, they arrange themselves into an orderly pattern called, When is the result when a diode's reverse bias is increased, What controls the electrical properties of the atom
What is the phase relationship between IC and IL at IS minimum. What is the phase relationship between VC and VL at IS maximum.
State two disadvantages of Time Graded Protection systems. What is the preferred secondary current rating of a CT for a Differential Protection System? why is this rating preferred
A 100 hp, 16 pole, 460V, three phase, 60hz induction motor has a slip of 2.4 percent when running at rated conditions. Determine (a) synchronous speed; (b) rotor speed (c) rotor frequency.
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