In a series R - C circuit, the resistance of the resistor is 4 Ω and capacitive reactance is 3 Ω. Calculate the impedance of the circuit

  • A 1Ω
  • B 4Ω
  • C 5Ω
  • D 7Ω
  • E 12Ω
waec 1993physics

The correct answer is C. 5Ω

Z = √R2 + x2

Z = √42 + 32

= 5Ω

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