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Solution


Q.

Consider the following statements A and B and identify the correct answer.              [2024]

A. For a solar-cell, the I–V characteristics lies in the IV quadrant of the given graph.
B. In a reverse biased pn junction diode, the current measured in (μA), is due to majority charge carriers.
1 A is correct but B is incorrect.  
2 A is incorrect but B is correct.  
3 Both A and B are correct.  
4 Both A and B are incorrect.  

Ans.

(1)

(A) The I-V characteristics of solar cell lies in IV quadrant of the given graph, where current is negative which means that current I is supplied by the solar cell and not drawn by it.

(B) In reverse-biased, p-n junction, the positive terminal is connected to the n-type. Hence, majority charge carriers are swept towards the terminals and minority charge carriers are repelled by the terminals. Hence, a small drift current flows through the diode due to minority charge carriers of both n-side and p-side.

Hence, A is correct but B is incorrect.