What is the photovoltaic effect?
The correct answer is B: The conversion of light to electrical energy. What is the photovoltaic effect is the conversion of light to electrical energy. Photovoltaic effect converts light to electricity. For amateur radio operators, this is important for optoelectronics knowledge. Understanding this helps when working with solar cells.
Exam Tip
Photovoltaic effect = conversion of light to electrical energy. Think 'P'hotovoltaic = 'P'hotons to 'V'oltage (light to electricity). Photovoltaic effect converts light to electricity. Not voltage to current, not light emission, not beta decrease - just light to electrical energy.
Memory Aid
"Photovoltaic effect = conversion of light to electrical energy. Think 'P'hotovoltaic = 'L'ight to 'E'lectricity. Photovoltaic effect converts light to electricity. Important for optoelectronics knowledge."
Real-World Application
The photovoltaic effect: It's the conversion of light to electrical energy. When light hits a photovoltaic cell, it generates electrical energy. This is what the photovoltaic effect is - light to electrical energy.
Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. Conversion of voltage to current when exposed to light isn't correct - photovoltaic is light to electrical energy. Voltage to current isn't correct.
Option C: Incorrect. Effect causing photodiode to emit light isn't photovoltaic - photovoltaic is light to electricity. Light emission isn't photovoltaic.
Option D: Incorrect. Effect causing phototransistor beta to decrease isn't photovoltaic - photovoltaic is light to electricity. Beta decrease isn't photovoltaic.
题目解析
The correct answer is B: The conversion of light to electrical energy. What is the photovoltaic effect is the conversion of light to electrical energy. Photovoltaic effect converts light to electricity. For amateur radio operators, this is important for optoelectronics knowledge. Understanding this helps when working with solar cells.
考试技巧
Photovoltaic effect = conversion of light to electrical energy. Think 'P'hotovoltaic = 'P'hotons to 'V'oltage (light to electricity). Photovoltaic effect converts light to electricity. Not voltage to current, not light emission, not beta decrease - just light to electrical energy.
记忆口诀
Photovoltaic effect = conversion of light to electrical energy. Think 'P'hotovoltaic = 'L'ight to 'E'lectricity. Photovoltaic effect converts light to electricity. Important for optoelectronics knowledge.
实际应用示例
The photovoltaic effect: It's the conversion of light to electrical energy. When light hits a photovoltaic cell, it generates electrical energy. This is what the photovoltaic effect is - light to electrical energy.
错误选项分析
Option A: Incorrect. Conversion of voltage to current when exposed to light isn't correct - photovoltaic is light to electrical energy. Voltage to current isn't correct. Option C: Incorrect. Effect causing photodiode to emit light isn't photovoltaic - photovoltaic is light to electricity. Light emission isn't photovoltaic. Option D: Incorrect. Effect causing phototransistor beta to decrease isn't photovoltaic - photovoltaic is light to electricity. Beta decrease isn't photovoltaic.
知识点
Photovoltaic effect, Conversion of light, Electrical energy
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.