A full wave rectifier circuit with diodes $\left(D_1\right)$ and $\left(D_2\right)$ is shown in the

Question

A full wave rectifier circuit with diodes $\left(D_1ight)$ and $\left(D_2ight)$ is shown in the figure. If input supply voltage $V_{	ext {in }}=220 \sin (100 \pi t)$ volt, then at $t=15 \mathrm{msec}$

Professor PC Thomas Classes · Answer

(d) : Given that, $V_{	ext {in }}=220 \sin (100 \pi t)$ volt and $t=15 \mathrm{msec}$ $$ \begin{aligned} V_{i n}= & 220 \sin \left(100 	imes \pi 	imes 15 	imes 10^{-3}ight) \ = & 220 \sin \left(\frac{3}{2} \piight)=-220 \mathrm{~V} \end{aligned} $$ Hence, $D_1$ is reverse biased and $D_2$ is forward biased.