Selected MCQ

Current Question
In a series RLC circuit at resonance, the impedance is:
  • A. Purely resistive and minimum
  • B. Purely capacitive and maximum
  • C. Purely inductive and minimum
  • D. Zero for any resistance
Correct Answer: A
Explanation:
At resonance (X_L=X_C), so reactances cancel and impedance equals (R).
Related Question 1
Which spectral line series lies in visible region for hydrogen?
  • A. Lyman
  • B. Balmer
  • C. Paschen
  • D. Brackett
Correct Answer: B
Explanation:
Balmer series transitions produce visible light.