Deep Dive: E5A13
The correct answer is C: Internal voltages increase. What is an effect of increasing Q in a series resonant circuit is that internal voltages increase. Higher Q means higher voltages across reactances. For amateur radio operators, this is important for circuit theory. Understanding this helps when designing resonant circuits.
Why Other Answers Are Wrong
Option A: Incorrect. Fewer components needed isn't the effect - increasing Q increases internal voltages. Fewer components isn't the effect. Option B: Incorrect. Parasitic effects minimized isn't the effect - increasing Q increases internal voltages. Parasitic effects isn't the effect. Option D: Incorrect. Phase shift becoming uncontrolled isn't the effect - increasing Q increases internal voltages. Phase shift isn't the effect.
Exam Tip
Increasing Q in series resonant circuit = internal voltages increase. Think 'I'ncreasing 'Q' = 'I'ncreased 'V'oltages. Higher Q means higher voltages across reactances. Not fewer components, not parasitic effects, not phase shift - just increased voltages.
Memory Aid
Increasing Q in series resonant circuit = internal voltages increase. Think 'I'ncreasing 'Q' = 'I'ncreased 'V'oltages. Higher Q means higher voltages across reactances. Important for circuit theory.
Real-World Example
Increasing Q in a series resonant circuit: An effect is that internal voltages increase. Higher Q means the voltage across the inductor or capacitor is Q times the source voltage. This is the effect - increased internal voltages.
Source & Coverage
Question Pool: 2024-2028 Question Pool
Subelement: E5A
Reference: 2024-2028 Question Pool · E5 - Electrical Principles
Key Concepts
Verified Content
Question from the official FCC Extra Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the E5A topic.