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Network TheoryAC Circuit Analysis

A coil has resistance 6 ohm and inductive reactance 8 ohm. Its impedance angle is closest to?

  • A36.9 degrees
  • B53.1 degrees
  • C60 degrees
  • D90 degrees
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Correct Answer: B. 53.1 degrees
Explanation: The impedance angle is tan^-1(XL/R)=tan^-1(8/6)≈53.1 degrees.
Reference: Standard network theory: impedance angle
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