Why Does Full Wave Rectification Create Opposite Polarity in V1 and V2 Plates?

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Discussion Overview

The discussion centers on the behavior of full wave rectification in relation to the polarity of the plates V1 and V2 in a circuit involving a center-tapped transformer. Participants seek to understand the underlying reasons for the observed opposite polarities during the rectification process.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants reference a source stating that when the plate of V2 is negative, the plate of V1 is positive, seeking clarification on this relationship.
  • Another participant explains that the two plates are connected to opposite ends of a center-tapped transformer secondary winding, which produces AC potentials that are anti-phase, meaning when one plate is positive, the other is negative.
  • A participant mentions the 5U4 full wave rectifier tube and its connection to the transformer center tap, indicating the role of the filament in the rectification process.
  • One participant corrects their earlier statement about the voltage development, specifying that the DC voltage is developed between the 5U4 filament and the transformer center tap.

Areas of Agreement / Disagreement

Participants express varying levels of understanding regarding the polarity relationship and the functioning of the rectifier, indicating that the discussion remains unresolved with multiple viewpoints presented.

Contextual Notes

The discussion includes references to specific components and their configurations, but lacks detailed explanations of the underlying electrical principles that govern the observed behaviors.

Pranav Jha
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http://www.tpub.com/neets/book6/22b.htm

"Throughout the period of time during which the plate of V2 is negative, the plate of V1 is positive". Can anyone please explain why this is the case?
 
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Pranav Jha said:
http://www.tpub.com/neets/book6/22b.htm

"Throughout the period of time during which the plate of V2 is negative, the plate of V1 is positive". Can anyone please explain why this is the case?

The two plates (anodes) are driven by the opposite ends of a centre-tapped transformer secondary winding. The AC potentials at the ends of such a winding with respect to the centre tap are in anti-phase to each other. That is to say, when one goes positive, the other goes negative.
 

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