A full wave rectifier circuit with diodes (D_1) and (D_2) is shown in the figure. If input supply voltage V_ in =220 (100 π t) volt, then at t=15 msec

Correct answer: B. D_1 is reverse biased, D_2 is forward biased aligned & At t=15 msec & V_ in =220 (100 π × 15 × 10^ -3 ) & =220 ((3 π)/(2))=-220 V aligned So diode D_1 is in reverse bias and D_2 is in forward bias

NEET 2025

Exam: NEET
Year: 2025
Subject: Physics
Chapter: Semiconductors

NEET 2025 · Physics · Semiconductors

A full wave rectifier circuit with diodes (D_1) and (D_2) is shown...

A full wave rectifier circuit with diodes

\left(D_1\right)

and

\left(D_2\right)

is shown in the figure. If input supply voltage

V_{\text{in }}=220 \sin (100 \pi t)

volt, then at

t=15 \mathrm{msec}

Options

A $D_1$ is forward biased, $D_2$ is reverse biased
B $D_1$ is reverse biased, $D_2$ is forward biased
C $D_1$ and $D_2$ both are forward biased
D $D_1$ and $D_2$ both are reverse biased

Correct answer

B. $D_1$ is reverse biased, $D_2$ is forward biased

Step-by-step solution

\begin{aligned} & \text{ At } \mathrm{t}=15 \mathrm{msec} \\ & \mathrm{V}_{\text{in }}=220 \sin \left(100 \pi \times 15 \times 10^{-3}\right) \\ & =220 \sin \left(\frac{3 \pi}{2}\right)=-220 \mathrm{ V}\end{aligned}

So diode

D_1

is in reverse bias and

D_2

is in forward bias

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