Extra exam question E5A13
Subelement E5, ELECTRICAL PRINCIPLES· Group E5A
What is an effect of increasing Q in a series resonant circuit?
- A.Fewer components are needed for the same performance
- B.Parasitic effects are minimized
- C.Internal voltages increase (correct answer)
- D.Phase shift can become uncontrolled
WhyIncreasing the Q of a series resonant circuit increases the internal voltages developed across its components. Raising the Q of a series resonant circuit increases the voltage magnification effect at resonance, so the internal voltages developed across the individual inductor and capacitor grow larger relative to the applied voltage, answer C. Higher Q doesn't reduce the component count needed, doesn't minimize parasitic effects, in fact a higher Q circuit can be more sensitive to them, and it doesn't cause phase shift to become uncontrolled.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
Related questions
- E5A01What can cause the voltage across reactances in a series RLC circuit to be higher than the voltage applied to the entire circuit?
- E5A02What is the resonant frequency of an RLC circuit if R is 22 ohms, L is 50 microhenries, and C is 40 picofarads?
- E5A03What is the magnitude of the impedance of a series RLC circuit at resonance?
- E5A04What is the magnitude of the impedance of a parallel RLC circuit at resonance?
- E5A05What is the result of increasing the Q of an impedance-matching circuit?