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the input voltage is 20 with phase angle -90 degrees. There is a 5 ohm resistor in series with it. There is a 3 ohm resistor and a j4 ohm inductor in series with each other, and parallel to the input voltage. There is a 4 ohm resistor, a -j13 ohm capacitor, and a 10 ohm resistor in series, which is parallel to the input voltage. The output voltage is measured across the 10 ohm resistor.
The voltage V across a semi conductor in a computer is given by V= aI+BI^2, where I is the current (in A). If a 24 V battery is conducted across the semi conductor, find the current if a=4 ohms and B= 0.5 ohms/A.
Three single phase transformers are used to form a three-phase transformer bank rated 13.8kV (delta)/120kV (wye). One side of the transformer bank is connected to a 120kV transmission line
Writing the mathematical equations of a DC motor develop the complete model to derive the open loop transfer function between the operating speed and applied voltage.
the cross-section of a rectangular capacitor is shown below. it consists of a 12mm by 12mm conducting strip shielded by a 20 mm by 20mm rectangular conductor and separated by air. using the finite difference method,
Work out the following problem: If the analog signal to be quantized is a sinusoidal waveform, that is, x(t) = 6 sin (6283t), and if the bipolar quantizer uses 8 bits, determine 1. Number of quantization levels; 2. Step size of the quantizer ; 3. ..
An electron is bound in a one-dimensional infinite potential well with a width of 5Å. (a) Calculate the first three energy levels that the electron may occupy. (b) If the electron drops from the third to the second energy level
Silicon, originally intrinsic, is doped with 4*10^16 /cm^3 of arsenic atoms at room temperature. a) What proportion of the silicon atoms have been replaced by arsenic atoms b) What is the thermally generated density of electrons and holes
A source X produces symbols A, B, C, D, and E with probabilities 0.5, 0.25, 0.125, 0.0625 and 0.0625 (a) Find the information content of X. (b) Give a fixed length code for X. Compute its efficiency. (c) Derive a Huffman code for X
Let a = 2 + j and b = 3 - xj be complex numbers where 'x' is an arbitrary constant. Let c = ab (i.e., complex number 'c' is the product of 'a' and 'b'). Calculate the magnitude of c as a function on constant 'x'.
an amplifier has three amplification stages and a 1-dB attenuator in cascade. Assuming that all the impedances are properly matched, what is the overall gain if the amplification factors are 5, 10, and 6 dB
A capacitance C=35 uF is in parallel with a certain element. Identify the element, given that the voltage and total current are v=150sin3000t(V) and i of tau=16.5sin3000t+72.4 degrees (A)
We want to sample the 2-D continuous signal f(x,y)=exp{-\(pi(x^{2}+y^{2})\)} by means of a rectangular sampling scheme to obtain 1.5 samples per millimeter. Determine the PSF h(x,y) of an ideal low pass anti aliasing filter
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