Given below are two statements: Statement I: Photovoltaic cells produce…
2023
Given below are two statements:
Statement I: Photovoltaic cells produce Alternating current (a.c.).
Statement II: Photovoltaic cells are exposed directly to the sun, therefore as temperature rises leakage across the cell increases.
In the light of the above statements, choose the most appropriate answer from the options given below:
Answer: D. Statement I is incorrect but Statement II is correct — CONCEPTA photovoltaic junction converts incident light directly into a unidirectional electrical output; a separate inverter is required to produce…
- A.
Both Statement I and Statement II are correct
- B.
Both Statement I and Statement II are incorrect
- C.
Statement I is correct but Statement II is incorrect
- D.
Statement I is incorrect but Statement II is correct
Show answer & explanation
Correct answer: D
CONCEPT
A photovoltaic junction converts incident light directly into a unidirectional electrical output; a separate inverter is required to produce alternating current.
Semiconductor reverse-saturation or leakage current rises strongly with junction temperature, reducing cell voltage and conversion efficiency.
APPLICATION
Statement I attributes alternating-current generation to the photovoltaic cell itself. The cell produces direct current, while an inverter performs the later DC-to-AC conversion.
Statement II describes the cell-temperature effect: sunlight heats the junction, and the temperature rise increases leakage current. Therefore Statement I is incorrect and Statement II is correct.
CONTRAST
Both statements correct conflicts with the cell’s native direct-current output.
Both statements incorrect overlooks the temperature dependence of leakage current.
Statement I correct and Statement II incorrect reverses both electrical facts.
Statement I incorrect and Statement II correct is consistent with both physical mechanisms.
RESULT
Statement I is incorrect but Statement II is correct.