A)
B)
C)
D)
Correct Answer: B
Solution :
Key Idea: In forward biasing of p-n junction p-side is given more positive voltage than n-side. |
For forward biasing of p-n junction, p-side should be at higher potential than n-side. Now we apply this rule to the four options. |
Here, p-side is at lower potential (OV) and n-side at higher potential (2V). So this diode is not forward biased. |
Here, p-side is at higher potential (OV) and n-side at lower potential\[(-2V)\]. So, this diode is forward biased. |
Here, p-side is at lower potential \[(-2V)\] and n-side at higher potential (OV). So, this diode is not forward biased. |
Here p-side is at lower potential (2V) and n-side at higher potential (5V). So, this is not forward biased. |
Hence, choice is correct. |
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