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Transformer utilization factor of bridge full wave rectifier _________

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Transformer utilization factor of bridge full wave rectifier _________

(a) 0.623

(b) 0.812

(c) 0.693

(d) 0.825

I have been asked this question during an online exam.

This interesting question is from Bridge Rectifier topic in section Application of Diodes of Electronic Devices & Circuits

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Correct option is (b) 0.812

Easy explanation: Transformer utilization factor is the ratio of AC power delivered to load to the DC power rating. This factor indicates effectiveness of transformer usage by rectifier. For bridge full wave rectifier it’s equal to 0.693.

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