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Concepts Of Physics MCQ Edition [Volume 2]PhysicsAlternating Current

A series AC circuit possesses a resistance of 4 ext and a reactance of 3 ext . The impedance of the circuit is

Options

  1. A7 12 ext
  2. B5 ext
  3. C7 ext
  4. D12 7 ext

Correct answer

B. 5 ext

Step-by-step solution

Given resistance R = 4 and reactance X = 3 . The impedance Z of a series AC circuit is given by: Z = R^2 + X^2 Substituting the given values: Z = 4^2 + 3^2 Z = 16 + 9 Z = 25 Z = 5

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