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KCET2012PhysicsAlternating Current

A resistor of 500 , an inductance of 0.5 H are in series with an AC which is given by V=100 2 (1000 t) . The power factor of the combination is

Options

  1. A0.6
  2. B1 2
  3. C1 3
  4. D0.5

Correct answer

B. 1 2

Step-by-step solution

Voltage V=100 2 (1000 t) and V = V ₀ t On comparing =1000 Inductive reactance aligned X_ L &= L =1000 0.5=500 &= 500 (500)²+(500)² = 1 2 aligned

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