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In a full wave junction diode rectifier,...

In a full wave junction diode rectifier, the input a.c. has r.m.s. value of `20 V`. The transformer used is a step up transformer having primary and secondary turns ratio `1: 2`. Calculate the d.c. and a.c. voltage in the rectified output.

A

`27.14V,36V`

B

`36V,27,14V`

C

`72V,54.28V`

D

`54.28V,72V`

Text Solution

Verified by Experts

The correct Answer is:
B
`V_(0)=sqrt2V_(r.m.s)`
The maximum value of output voltage of the transformer applied to the diode `=V_(0).=2xxV_(0)`
`:.` D.C voltage `=(2V_(0))/(pi)`
Output A. C. voltage `=0.48xxV_(0).`
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