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A power station supplies power at 11 kV, 0·8 p.f. lagging to a consumer through a single phase transmission line having total resistance (both go and return) of 0.15 Ω. The voltage drop in the line is 15%.
If the same power is to be supplied to the same consumer by two wire d.c. system by a new line having a total resistance of 0·05 Ω and if the allowable voltage drop is 25%, calculate the d.c. supply voltage.
1. Formulate the cost function in terms of autocorrelation values of the time sequence and filter weights 2. Derive Wiener-Hopf equations (in matrix form) 3. Determine the closed form solution for Wiener-Hopf equations (in matrix form)
A PV system using battery charger can provide the necessary power when there is no sun. The manufacturer has provided following parameters (All measurements are done at standard condition of AM1.5 G spectrum) of an Indi dual solar cell.
Suppose we have a linear function f(X). We are given two points on the line and their values: a, f (a), b, and f(b). Now we need to use linear interpolation to compute the value of a new point f(c).
Q1. Find the phase relationship between the following waveforms. V 1=-10 sin(wt+60°) and V2= 10 sin(wt-20°) sketch these two waveforms
In a unity feedback system, the forward path has a transfer function of the form G(s) = k/(1+s/ωp), and the feedback path has a gain of kfp which is less than unity. Calculate the bandwidth of the closed-loop transfer function.
A 40 kHz sinusoidal voltage has zero phase angle and a maximum amplitude of 2.5 mV. When this voltage is applied across theterminals of a capacitor the resulting steady-statecurrent has a maximum amplitude of 125.67μA
The silicon cube you were shown consisted of 4x4x4 unit cells. You were shown one dopant in the silicon cube. Given that the lattice constant of silicon is 0.543 nm. Calculate the dopant density represented by the 4x4x4 silicon cube simulation.
Consider the difference equation: y(n)=(5/6)y(n-1) - (1/6)y(n-2) + x(n) where x(n) = 2^n u(n) and y(n) = 0 for all n
current is 127.52 microamps. and the current was measured on a 50000 counts digital multimeter on a range with accuracy specification of 0.1% + 5d. what is the resolution and the uncertainty interval associated with this measurement
The highest frequency contained in a certain analog signal is 4 kHz. Determine the sampling rate if it is chosen to be 50% greater than the theoretical minimum.
Show how truncating a signal affects its spectrum using both equations and pitures. What can one do to reduce the effects of truncation?
At a certain location, the horizontal component of the earth's magnetic field is 3.70 10-5 T, due north. A proton moves eastward with just the right speed for the magnetic force on it to balance its weight. Find the speed of the proton.
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