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A 100 F double layer carbon capacitor has a working voltage of 3 V and overall dimensions 303030 mm. What is the volumetric efficiency of the capacitor? It is required to use a pack of such capacitors to operate at 300 V. Estimate the volumetric efficiency of the 300 V pack. Compare the energy densities (J/kg) of the single cell and cell pack.
Give two examples of backward information in SS No. 7. 35. What facilitates end-to-end signaling typically for ISUP (i.e., what "part" of SS No. 7)?
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
A 240-V, 900-rpm, dc series motor takes 25 A at full load. The armature and field-winding resistances are 0.2 ohm and 0.3 ohm, respectively. The rotational loss is 300 W. Calculate (a) the power developed, (b) the power output, (c) the available t..
A lighting load operates from a 208-V 60-Hz supply and is rated 1.0 kW with a power factor of 0.9 lagging. A 40-µF capacitor is connected in parallel with this load. Calculate the total power factor and the percent change in line current.
The collector current was measured for different values of load resistance. It was noticed that the collector current was pretty much constant for the first 1900 ohms and then it fell drastically.
Design a device that creates a voltage that is a damped oscillation with a frequency of 5 radians per second and a time constant of 3 seconds. In particular, explain how initial conditions are to be handled.
draw a digital design consisting of 2 input AND gates and three inverters, where an inverter is connected to each of the AND gates input and its output. For each of the four possible combinations inputs applied to the two primary inputs.
Figure P16.2.27 (b) illustrates a multiple-loop feedback control system, where the argument s is omitted for simplicity. Reduce it to a single-loop configuration
A 200 resistor, a 10 mH inductor and a 4.7 µF capacitor are connected in a series circuit. a. Is the circuit overdamped, underdamped, or critically damped b. Write the characteristic equation and find the poles of this circuit.
Develop the pseudo-code below for a program that will retrieve 2 bytes (NUM1 and NUM2) from memory, determine which is closest to the numeric value 50, and indicate the result by setting a variable named "CLOSEST" to 1 (if 1st byte is closest) or ..
compute the money saved in one month by using CFL (compact fluorescent light) bulb (18 W) instead of using an incandescent lamp (60 W) if the cost of electricity is $.12 per kWh. Assume lights are used for 10 hours a day. (30 days in the month)
Recompile the code for N = 4 and simulate it using the same stimuli of figure 11.13a, checking whether the same results are obtained here.
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