Question 48
Alternating Current CircuitsAn alternating source is connected in series to a capacitor of capacitive reactance of 103√3 Ω and a resistor of resistance 103 Ω. The impedance of the circuit is
- A.2000√3 Ω
- B.2000 Ω
- C.1000√3 Ω
- D.1000 Ω
Show the answer and explanation
Answer: B (2000 Ω)
Explanation
Z = √(R2 + X2) = √(106 + 3 × 106) = √(4 × 106) = 2000 Ω.