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A hydroelectric dam creates a reservoir of 10 km3. The average head of the reservoir is 100 m. Compute the PE of the reservoir.
A DTMF signal with duration T seconds can be modeled as a sum of two cosine signals with frequencies frand fc, multiplied by a rectangle function. For example, the DTMF signal for "1" is g1(t) = rect (t/T) * [cos(2pi*687t)+cos(2pi*1209t)]
Obtain an expression for the spectrum of an FM signal with single-tone modulation where the carrier amplitude is Ac, the carrier frequency is Fc, the message frequency is fm and the modulation index is B (beta).
Calculate the value of the capacitance connected in parallel that will raise the power factor to unity.
Design a Double Sideband Amplitude Modulation (DSBAM) modulator and demodulator system using the SystemView software. The modulating wave m(t) = Amcos(2pifmt) and the carrier wave c(t) = Accos(2?fct) have the following parameters
You deposit 10% of your annual salary at the each of each year in a retirement account. F= Future worth A1= first annual deposit n=number of years g=geometric gradient F=A1(1-(1+g)^n(1+i)^-n/(i-g))(1+i)^n use Matlab to graph the function.
A unit of power often used for electric motors is the horse power (hp), which equals 746W. A small electric car is equipped with a 40-hp electric motor. How much energy does the motor deliver in one hour
Design an inverting amplifier with a gain of -12 that has an input impedance that is larger than 100K that can drive a 2K resistive load using bipolar transistors. Verify your design analytically and with SPICE.
In the simulation, construct an arrangement of three charges in the shape of an equilateral triangle and find the net force on one of the charges. What happens as you move the charge between the other two charges?
calculate the sending and receiving end voltages, power flows and transmission losses.- Increase, the demand to 1000 amps and recalculate the values.
Design a voltage-divider bias network using a supply of 24V, a transistor with a Beta of 110, and an operating point of IC = 4mA, and VCE = 8V. R2 = 7.5k. Choose VE = (1/8)VCC
Develop a marketing plan for your business this should include an introductory statement to describe your product /service A description of your target market. Information about your distribution, pricing and promotional strategies
If the tansformer is connected to a 0.8(at 10 degrees) Ω load on the low-voltage side, determine the primary and the secondary currents when the transformer is connected to 1200 V rms.
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