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Suppose that we need a first-order RC low pass filter with a half-power frequency of 1 kHz. Determine the value of the capacitance, given that the resistance is 5 k Ω.
A 4 pole DC generator has an armature winding containing a total of 648 conductors connected in 2 electrical parallel paths. If the flux per pole is 0.321 x 10^6 Maxwells and the speed of rotation is 1800 rpm.
Three small spheres with charge 2.00 mC are arranged in a line, with sphere 2 in the middle. Adjacent spheres are initially 8.0 cm apart.
The factorial n! of a positive number (integer) is defined by: n! = n(n-1)(n-2)...3*2*1, where 0! = 1. Write a user difned fuction that calculates the factorial n! of a number. For the function name and arguments use y = fact(x)
A 22.5 ohm resistor is connected across a 15 V battery. What value resistor should be used to generate the same amount of heat if the power source is 283 Vp-p at 60 Hz
Find i(t), vL(t), v(t), the energy stored in the capacitance, the energy stored in the inductance, and the total stored energy for the circuit of Figure, given that vC(t) = 10 cos(1000t)V. (The argument of the cosine function is in radians.) Show ..
An electronic PI temperature controller has an output p of 12 mA when the set point equals the nominal process tmperature. The controller response to step change in the temperature set point of 3 mA
Consider two discrete sequences: x = [7.7, 5.2, 2.2] y = [1.0, 9.3, 3.1] Let z be the convolution of x and y. What is the 4th non-zero value of z (from the left)
THE Number of pumps in use at both a six-pump station and a four-pump station will be determined. Give the possible values for each of the following random variables. a. T = the total number of pumps in use
Suppose we have a resistive load that varies from 5 kOhms to 10 kOhms. We connect this load to an amplifier, and we need the voltage across the load to vary by less than 1 percent with variations in the load resistance.
The magnetic and mechanical losses are 1500 W and 250 W, respectively. Sketch its power flow diagram and determine its efficiency.
Determine whether the system described by (1) y[n]=log(nx[n]), (2) y[n]=sqrt(n)*x[n+1], (3) y[n]=x[n-2]u[n], where a is an integer and |a|>1, is (i) memoryless; (ii) invertible; (iii) causal; (iv) stable; (v) time invariant; (vi) linear
The load on a 460-v, 60-Hz, Y-connected, balanced three phase source consists of three equal Y connected impedance of 100-j100 Ohms and three equal delta-connected impedance of 300-j300 Ohms.
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