4.70 A full-wave bridge-rectifier circuit with a 500-2 load operates from a 120-V (rms) 60-Hz houschold supply through a 6-to-1 step-down transformer having a single secondary winding. It uses four diodes, each of which can be modeled to have a 0.7-V drop for any current. What is the peak value of the rectified voltage across the load? For what fraction of a cycle does each diode conduct? What is the average voltage across the load? What is the average current through the load? 6:1 120 V rms 20 Vms 10.5 kN D2 D3 Vp = 0.7 V ண

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