Deep Dive: E6F11
The correct answer is A: 0.5 volts. What is the approximate open-circuit voltage produced by a fully illuminated silicon photovoltaic cell is 0.5 volts. Silicon solar cells produce about 0.5V open-circuit. For amateur radio operators, this is important for photovoltaic knowledge. Understanding this helps when working with solar cells.
Why Other Answers Are Wrong
Option B (0.7 volts): Incorrect. 0.7V is too high - silicon cells produce about 0.5V open-circuit. 0.7V is wrong. Option C (1.1 volts): Incorrect. 1.1V is too high - silicon cells produce about 0.5V open-circuit. 1.1V is wrong. Option D (1.5 volts): Incorrect. 1.5V is too high - silicon cells produce about 0.5V open-circuit. 1.5V is wrong.
Exam Tip
Silicon photovoltaic cell open-circuit voltage = 0.5 volts. Think 'S'ilicon 'P'hotovoltaic = '0'.5V. Silicon solar cells produce about 0.5V open-circuit. Not 0.7V, not 1.1V, not 1.5V - just 0.5 volts.
Memory Aid
Silicon photovoltaic cell open-circuit voltage = 0.5 volts. Think 'S'ilicon 'P'hotovoltaic = '0'.5V. Silicon solar cells produce about 0.5V open-circuit. Important for photovoltaic knowledge.
Real-World Example
A fully illuminated silicon photovoltaic cell: The approximate open-circuit voltage produced is 0.5 volts. This is why multiple cells are connected in series to get higher voltages. This is the voltage - 0.5 volts open-circuit.
Source & Coverage
Question Pool: 2024-2028 Question Pool
Subelement: E6F
Reference: 2024-2028 Question Pool · E6 - Circuit Components
Key Concepts
Verified Content
Question from the official FCC Extra Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the E6F topic.