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A 35 kVA transformer supplies a load of 12 kW at a power factor of 0.45 lagging. Find the percentage of full load the transformer is carrying. If additional unity power factor loads are to be served with the same transformer, how many kW may be added before the transformer is at full load?
a) What current will flow in the diode if the forward voltage bias is raised to 0.8V b) What current will flow in the diode if the forward voltage bias is lowered to 0.6V c) What change in forward bias voltage will increase the diode current by a ..
Create an array, array1, that has the last 14 elements of which the first element is 49 and the last element is 10. THen using the colon symbol create a new array, array 2, whcih has 8 elements. the first 4 elements of array 2 are the 4th through ..
A box contains 50 diodes of which 10 are known to be bad. If the first diode drawn from the box was good, what is the probability that a second diode drawn will be good
An automobile manufacturer is concerned about a fault in thebraking mechanism of a particular model. The fault can, onrare occasions, cause a catastrophe at high speed. The distrubution of the number of cars per year that will experience
In a feedback system, the forward path has a transfer function of the form G(s)=k/(1+s/Omega_p) and the feedback path has a gain of k_fb which is less than unity. Calculate the bandwidth of the closed-loop transfer function
determine the current drawn from a 3 phase 220 V line by a 3 phase 15kW motor operating at half load, 85% efficiency and .8 pf lagging. Find the values of real and reactive power drawn from the line.
Find the real power and reactive power dissipated in an impedance Z = 2 ohm at zero degree carrying a current of I = 6 + j8 A. What is real power consumed by the impedance
(a) Compute the minimum voltage that the output voltage across R1 falls to when both capacitors C1 and C2 are present. (b) Using the same model for D1, compute the maximum voltage that the output voltage across R1 rises to.
Design an inverting amplifier with a gain of -12 that has an input impedance that is larger than 100K that can drive a 2K resistive load using bipolar transistors. Verify your design analytically and with SPICE.
If she is a carrier, then each prince has a 50-50 chance of having hemophilia, independently of the other princes. If the queen is not a carrier, the prince will not have the disease. Suppose the queen has had three princes, each without the disea..
A circuit consists of a current source, i=0.030 sin 500t, in parallel with L=20mH, C=50 micro Farads and R=25 Ohms. a. Determine the voltage V across the circuit. b. Solve for the power factor of the circuit.
Let f(a,b) = b' + a. (a) Derive the truth table for f. (b) What is the canonical sum-of-products expression for f? Do not use the shorthand notation. (c) Prove by Boolean algebra that the original expression is the same as the canonical SOP expres..
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