The diodes in the full-wave DC power supply shown in Figure P12.15 are silicon. Assume:
Io = 600 mA Vo = 50 V
Vripple = 8% = 4 V vline = 170 cos ?t V
Determine the value of the conduction angle for the diodes and the average and peak current through the diodes. The load voltage waveform is shown in Figure P12.17.
Analysis:
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A pressure gauge on an air tank reads 210 pounds per square inch (psi). The face of the gauge says ±3% at 180 psi.
(a) What is the range of air pressure in the tank when the gauge reads 210 psi? (b) What is the range of air pressure in the tank when the gauge reads 87 psi?
One of the most important factors leading to an increased divorce rate in the late 19th century was the
A. women's growing economic independence as a result of the widespread entry into the professional world. B. stresses of urban life. C. emerging feminist movement. D. passage of more liberal divorce laws. E. decline of religious organizations.
Market research and laboratory studies are essential tools of product development and the information collected can later be used by the advertising and sales forces.
Answer the following statement true (T) or false (F)
Repeat Problem 7-20 for an intersection of a divided four-lane major road and a two-lane minor road, if the median width on the major road is 12 ft and the approach grade on the minor road is 3%.
What will be an ideal response?