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Name two materials not listed in Table that are good conductors of electricity.
TABLE
Metal
Relative conductivity (%)
Silver
105
Copper
100
Gold
70.5
Aluminum
61
Tungsten
31.2
Nickel
22.1
Iron
14
Constantan
3.52
Nichrome
1.73
Calorite
1.44
A full adder is a circuit which adds three bits X, Y, Z together and returns two bits C and S to represent the total as a 2-bit binary number C S. C is the MSB and S is the LSB. For example, if X=1, Y=1, Z=0, the total should be 2, or 102 in binar..
A 150-MVA 15/200-kV single-phase power transformer has a 0.018ohm resistance and a 0.075ohm reactance. The magnetizing impedance is j80 per unit. a.) Find the equivalent circuit referred to the low-voltage side of this transformer.
a network has a 5-muF capacitence in series with the parallel combination of a 12 mu-F capacitence and an 8mu-F capacitence. Sketch the circuit diagram and determine the equivalent capacitence of the combination.
In a certain transformer, the input power to the primary is 120 W.- If 8.5 W are lost to the winding resistance, what is the output power to the load, neglecting any other issues?
In the case of an open circuited p-n junction, the acceptor atom concentration is 2.5×1016/m3, donor atom concentration is 2.5×1022/m3 and intrinsic concentration is 2.5×1019/m3. Determine the value of the contact difference of potential.
Find VO in the circuit in fig 1.- Find the current Ix in the 4- ohm resistor in the circuit in the fig 2.
Two statistically dependent random variables x1 and x2 are applied at the inputs to a threshold detector , the output from which is equal to the number of inputs that exceed the threshold T. Thus, y = 0, 1 or 2.
The two blocks in the figureoscillate on a frictionless surface with a period of 1.7 s. The upper block just begins to slip when the amplitude is increased to 32cm. What is the coefficient of static friction between the two blocks
1. What is the effect of increasing the quantization levels on the quantization error in a PCM signal 2. How can we increase the data rate in a digital signal
A simple voltage divider circuit is used to measure the output of a transducer whose total resistance is 1000 ± 1percent. The internal resistance of voltmeter is 10000 ± 5percent, and the meter is calibrated to read with in ½ % ofthe true voltage ..
The magnitude of the current in a RL circuit decreases at a rate of 2000 A/s at t=0 and 100 A/s at t=.2s. At what time has the energy stored in the inductor decreased 1 percent of its intial value.
In a RLC circuit, the generator voltage varies in time, where the amplitude of e max= 1.2 volt and emf freq.= 0.5 Hz , which the max current is equal to the max current when the freq. of emf = 3.0 Hz, which is .00033 A.
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