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A coil of 300 turns, wound on a core of non-magnetic material, has an inductance of 10 mH. Calculate:
(a) the flux produced by a current of 5 A;
(b) the average value of the e.m.f. induced when a current of 5 A is reversed in 8 ms (milliseconds).
The scale current Is is proportional to the junction area of a diode. A diode D1 with a rating of 3mA is connected in series with another Diode D2 with a junction area 27 times that of D1. 1) What will be the rating of the series combination
(a) Draw the equivalent circuit. (b) Determine the ohmic value of the impedances. (c) Calculate the source current in amperes and in percent if the generator operating voltage is 3.8 kV (line-to-line) and a reactance of X=125% is connected in seri..
Under this condition, calculate the relative magnitudes of the resultant positive- and negative-traveling mmf waves.
An industrial assembly hall is continuously lighted by one hundred 40- W mercury vapor lamps supplied by a 120- V and 60- Hz source with a power factor of 0.65. Due to the low power factor, a 25 percent penalty is applied at billing.
What is the value of Tit if P e1ee = 25 kW, Pmeeh = 15kW, ks = 400 W/m . K, L = 0.5 m, D = 0.05 m, W = 0.7 m, t = 0.05 m, kp = 0.5 W/m · K, Ah = 2 m2, hh = 10 W/m2 · K, h, = 300 W/m2 · K, and Too = 25°C?
Frequently, the output of transducers are much smaller than what an A/D converter expects on its input. That would require an amplifier to match it. Sometimes the output does not start at 0V. Usually the minimum reference input voltage of an A/D
Construct a 2 rung ladder schematice with an AC source with overload protection in the main line, the schematic will contain 1 rung with a lamp load controlled by a N.O. Push button. On the second rung there will be a N.C.
A digital communications system is being designed with the goal of transmitting 32 kbits/s over a channel having a bandwidth of 8 kHz. Determine (a) the number of encoding levels required and (b) the minimum signal-to-noise ratio required in the c..
The impurity is removed with practically no loss of carrier liquid. By local ordinance, a maximum of 100 ppm is allowed in the discharge to a nearby river. The treating process removes all but 10 ppm.
Determine the lower critical frequeircy and label this poirrt otl your graph. Determine the upper critical frequency and label this point on your graph.
The rate of heat loss from the air in the duct is estimated to be 300 W. Determine the power rating of the electric resistance heating element.
Two charged, parallel, flat conducting surfaces are spaced d = 2.10 cm apart and produce a potential difference ΔV = 500 V between them. An electron is projected from one surface directly toward the second.
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