Q.

Two sides of a semiconductor Germanium crystal A and B are doped with Arsenic and Indium, respectively. They are connected to a battery as shown in figure.The correct graph between current and voltage for the arrangement is :

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a

b

c

d

answer is D.

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Detailed Solution

When As (V group) is added to Ge (IV group) it becomes n-type.In (III group) is added to Ge (IV) it becomes p-type.Therefore, the given diode is in Reverse Bias.
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Two sides of a semiconductor Germanium crystal A and B are doped with Arsenic and Indium, respectively. They are connected to a battery as shown in figure.The correct graph between current and voltage for the arrangement is :