STANDARD Physics Impedance in AC Circuits MCQ Question
A circuit containing a 20 Ω resistor and 0.1 μF capacitor in series is connected to 230 V ac supply of angular frequency 100 rad s⁻¹. The impedance of the circuit is
10⁵ Ω
10⁴ Ω
10⁶ Ω
10¹⁰ Ω
Correct Answer
Detailed Explanation
The impedance Z is calculated using the formula Z = √(R² + (1/ω²C²)). Substituting R = 20 Ω, C = 0.1 μF = 10⁻⁷ F, and ω = 100 rad/s, we get Z ≈ 10⁵ Ω.
Found an issue with this question?
Related Questions
More from
In an AC circuit, the power factor is given by cosφ, where φ is the phase difference between voltage and current. If the rms voltage is 220 V, rms cur...
What is the term used to describe the phase relationship factor between voltage and current in an AC circuit?
In the context of an LC circuit, which of the following statements about energy oscillation and conservation is correct?