Question: 23. Consider the following statements A and B and identify the correct answer :
A. For a solar-cell, the I-V characteristics lies in the IV quadrant of the given graph.
B. In a reverse biased p n junction diode,
the current measured in (\mu A),
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.
Answer: Option (1)
Explanation:
A solar cell works as a source of electrical energy.
In a solar cell, current flows in a direction opposite to the applied voltage,
which means the current is positive while the voltage is negative.
Hence, the I–V characteristic of a solar cell lies in the IV quadrant of the I–V graph.
Therefore, statement A is correct.
In a reverse biased p n junction diode,
the majority charge carriers are repelled away from the junction.
The small current observed in reverse bias,
measured in microampere (\mu A) range,
is due to minority charge carriers.
Hence, statement B is incorrect.
Therefore, the correct answer is that A is correct but B is incorrect.