Semiconductor Electronics: Materials, Devices and Simple Circuits: RE-NEET 2026

Medium· Semiconductor Diode (P-n Junction under Forward Bias, p-n Junction Diode)· +4 / −1

Three identical p-n junction diodes

D_1

D_2

, and

D_3

are connected across a battery as shown in the figure. If the width of the depletion regions of

D_1

D_2

and

D_3

are

W_1

W_2

and

W_3

, respectively, then the correct option is: Figure: three parallel branches across a

5

V battery. Branch 1: a

1\ \mathrm{k\Omega}

resistor in series with

D_1

(conducting direction from the battery's positive side). Branch 2: a

1\ \mathrm{k\Omega}

resistor in series with

D_2

, but this branch has a gap (an open point) before it reaches the right-hand rail, so no current flows. Branch 3:

D_3

in series with a

1\ \mathrm{k\Omega}

resistor, with

D_3

connected in the opposite direction. Question diagram

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