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In Half-wave uncontrolled rectifier calculate the average value of the current for 3 Ω resistive load if the supply is 34sin(11t).(a) 3.6 A(b) 2.6 A(c) 2.5 A(d) 3.1 AI got this question in an interview for job.This intriguing question comes from Solid-State Switching Circuits topic in chapter Introduction to Solid-State Switching Circuits of Electric Drives

Answer»

Correct answer is (a) 3.6 A

For explanation I would say: In Half-wave UNCONTROLLED RECTIFIER, the average value of the current is Vm÷πR=34÷3π=3.6 A. The diode will conduct only for the positive half cycle. The CONDUCTION period of the diode is π.



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