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KCET2023PhysicsAlternating Current

Total impedance of a series L-C-R circuit varies with angular frequency of the AC source connected to it as shown in the graph. The quality factor Q of the series L-C-R circuit is

Options

  1. A0.4
  2. B2.5
  3. C5
  4. D1

Correct answer

B. 2.5

Step-by-step solution

According to given diagram, aligned & ₁=400 rad / s ; _r=500 rad / s & ₂=600 rad / s aligned Quality factor, aligned Q & = _r ₂- ₁ & = 500 600-400 = 500 200 =2.5 aligned

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