Which of these materials is most commonly used to create photoconductive devices?
The correct answer is C: Crystalline semiconductor. Which of these materials is most commonly used to create photoconductive devices is crystalline semiconductor. Crystalline semiconductors are the most common material for photoconductive devices. For amateur radio operators, this is important for optoelectronics knowledge. Understanding this helps when working with photoconductive devices.
Exam Tip
Most common material for photoconductive devices = crystalline semiconductor. Think 'P'hotoconductive = 'C'rystalline 'S'emiconductor. Crystalline semiconductors are the most common material. Not polyphenol acetate, not argon - just crystalline semiconductor.
Memory Aid
"Most common material for photoconductive devices = crystalline semiconductor. Think 'P'hotoconductive = 'C'rystalline 'S'emiconductor. Crystalline semiconductors are the most common material. Important for optoelectronics knowledge."
Real-World Application
Materials used to create photoconductive devices: Crystalline semiconductor is most commonly used. Materials like cadmium sulfide (CdS) are crystalline semiconductors used in photoconductive cells. This is the material - crystalline semiconductor.
Key Concepts
Why Other Options Are Wrong
Option A (Polyphenol acetate): Incorrect. Polyphenol acetate isn't commonly used - crystalline semiconductor is. Polyphenol acetate isn't the material.
Option B (Argon): Incorrect. Argon isn't commonly used - crystalline semiconductor is. Argon isn't the material.
Option D: Incorrect. Since A and B are not correct, 'all of the above' cannot be correct. Only crystalline semiconductor is correct.
题目解析
The correct answer is C: Crystalline semiconductor. Which of these materials is most commonly used to create photoconductive devices is crystalline semiconductor. Crystalline semiconductors are the most common material for photoconductive devices. For amateur radio operators, this is important for optoelectronics knowledge. Understanding this helps when working with photoconductive devices.
考试技巧
Most common material for photoconductive devices = crystalline semiconductor. Think 'P'hotoconductive = 'C'rystalline 'S'emiconductor. Crystalline semiconductors are the most common material. Not polyphenol acetate, not argon - just crystalline semiconductor.
记忆口诀
Most common material for photoconductive devices = crystalline semiconductor. Think 'P'hotoconductive = 'C'rystalline 'S'emiconductor. Crystalline semiconductors are the most common material. Important for optoelectronics knowledge.
实际应用示例
Materials used to create photoconductive devices: Crystalline semiconductor is most commonly used. Materials like cadmium sulfide (CdS) are crystalline semiconductors used in photoconductive cells. This is the material - crystalline semiconductor.
错误选项分析
Option A (Polyphenol acetate): Incorrect. Polyphenol acetate isn't commonly used - crystalline semiconductor is. Polyphenol acetate isn't the material. Option B (Argon): Incorrect. Argon isn't commonly used - crystalline semiconductor is. Argon isn't the material. Option D: Incorrect. Since A and B are not correct, 'all of the above' cannot be correct. Only crystalline semiconductor is correct.
知识点
Materials, Most commonly used, Create photoconductive devices, Crystalline semiconductor
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.