In a center tap full wave rectifier, if Vm is the peak voltage across the secondary transformer, the maximum voltage across reverse bias is _.
Correct answer: C. 2Vm
- A. Vm
- B. Vm/√2
- C. 2Vm
- D. Vm/3
Explanation
A full-wave rectifier is defined as a rectifier that converts the complete cycle of alternating current into pulsating direct current (DC). If Vm is the peak voltage across the secondary transformer, the maximum voltage coming across the reverse-biased diode is 2Vm.
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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
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