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Network TheorySecond-Order Circuits

For a series RLC circuit with L=1 H and C=0.25 F, the undamped natural frequency omega0 is?

  • A0.5 rad/s
  • B1 rad/s
  • C2 rad/s
  • D4 rad/s
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Correct Answer: C. 2 rad/s
Explanation: omega0=1/sqrt(LC)=1/sqrt(1×0.25)=2 rad/s.
Reference: Standard network theory: natural frequency numerical
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