Question

In the diagram shown below, the input is across the terminals $A$ and $C$ and the output is across $B$ and $D$ Then the output is

• A. Zero
• B. Same as input
• C. Full wave rectified
• D. Half wave rectified

Answer 1

The correct option is C Full wave rectified

During half cycle when$V_M>V_N$, $D_{1}and{D}_3$ are forward biased. The path of current is MABPQDCNM.

In second half cycle,$V_N>V_M$, $D_{2}and{D}_4$ are forward biased while $D_{1}and{D}_3$ are reverse biased. Hence, path of current is ,NCBPQDAMN.

Therefore, in both half cycles, current flows from $PtoQ$ from load resistance $R_L$. It is full wave rectifier.