Which of the following can be used to determine the Q of a series-tuned circuit?
The correct answer is C: The bandwidth of the circuit's frequency response. Which of the following can be used to determine the Q of a series-tuned circuit is the bandwidth of the circuit's frequency response. Q = resonant frequency / bandwidth. For amateur radio operators, this is important for circuit analysis. Understanding this helps when analyzing tuned circuits.
Exam Tip
Determine Q of series-tuned circuit = bandwidth of frequency response. Think 'Q' = 'Q'uotient of frequency / 'B'andwidth. Q = resonant frequency / bandwidth, so bandwidth is needed. Not reactance ratio, not frequency shift, not resonant frequency alone - just bandwidth.
Memory Aid
"Determine Q of series-tuned circuit = bandwidth of frequency response. Think 'Q' = frequency / 'B'andwidth. Q = resonant frequency / bandwidth, so bandwidth is needed. Important for circuit analysis."
Real-World Application
Determining the Q of a series-tuned circuit: The bandwidth of the circuit's frequency response can be used. Q = resonant frequency / bandwidth. By measuring the bandwidth (e.g., -3 dB points), you can calculate Q. This is the method - bandwidth of frequency response.
Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. Ratio of inductive reactance to capacitive reactance isn't how Q is determined - Q = frequency / bandwidth. Reactance ratio isn't the method.
Option B: Incorrect. Frequency shift isn't how Q is determined - Q = frequency / bandwidth. Frequency shift isn't the method.
Option D: Incorrect. Resonant frequency alone isn't enough - Q = frequency / bandwidth, so bandwidth is needed. Resonant frequency alone isn't enough.
题目解析
The correct answer is C: The bandwidth of the circuit's frequency response. Which of the following can be used to determine the Q of a series-tuned circuit is the bandwidth of the circuit's frequency response. Q = resonant frequency / bandwidth. For amateur radio operators, this is important for circuit analysis. Understanding this helps when analyzing tuned circuits.
考试技巧
Determine Q of series-tuned circuit = bandwidth of frequency response. Think 'Q' = 'Q'uotient of frequency / 'B'andwidth. Q = resonant frequency / bandwidth, so bandwidth is needed. Not reactance ratio, not frequency shift, not resonant frequency alone - just bandwidth.
记忆口诀
Determine Q of series-tuned circuit = bandwidth of frequency response. Think 'Q' = frequency / 'B'andwidth. Q = resonant frequency / bandwidth, so bandwidth is needed. Important for circuit analysis.
实际应用示例
Determining the Q of a series-tuned circuit: The bandwidth of the circuit's frequency response can be used. Q = resonant frequency / bandwidth. By measuring the bandwidth (e.g., -3 dB points), you can calculate Q. This is the method - bandwidth of frequency response.
错误选项分析
Option A: Incorrect. Ratio of inductive reactance to capacitive reactance isn't how Q is determined - Q = frequency / bandwidth. Reactance ratio isn't the method. Option B: Incorrect. Frequency shift isn't how Q is determined - Q = frequency / bandwidth. Frequency shift isn't the method. Option D: Incorrect. Resonant frequency alone isn't enough - Q = frequency / bandwidth, so bandwidth is needed. Resonant frequency alone isn't enough.
知识点
Q of series-tuned circuit, Bandwidth of frequency response, Circuit Q, Tuned circuit
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.