Question
For the given circuit shown in fig, to act as full wave rectifier :- $a.c.$ input should be connected across .............. and ................. the $d.c.$ output would appear across ............. and ..................
✓
Answer
To act as full wave rectifier input must be connected across $B \& D$ and output must be taken across $A$ $\&$ $C$
Because we need to get a full wave rectifier, it means that the cycle generated must be continuous. Now when the first cycle of alternating current will come then $AB$ $\&$ $CD$ will generate output as they will only have forward biased.
Now when second cycle of alternating current will come then AD \& BC will generate output as they have forward biased.
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