Question

For the given circuit shown in the diagram, to act as full wave rectifier, A.C. input should be connected across ....... and ....... while the D.C. output would appear across ....... and .......

• A. A, C and B, D
• B. B, D and A, C
• C. A, B and C, D
• D. C, A and D, B

Answer 1

The correct option is B B, D and A, C


Let us complete the bridge rectifier circuit, as shown above. The A. C. input should be connected across B, D and the D. C. output will be obtained across A, C.

In the positive half cycle of A. C., diodes $1$ and $4$ are forward biased while the diodes $2$ and $3$ are reverse biased. So the current will flow from A to C, across the load resistance.

In the negative half cycle of A. C., diodes $2$ and $3$ are forward biased while the diodes $1$ and $4$ are reverse biased. So, again, the current will flow from A to C, across the load resistance.

Hence, $\left(B\right)$ is the correct answer.