STANDARDPhysics-Alternating Current
STANDARD Physics Impedance in AC Circuits MCQ Question
Type: MCQ-numerical-Medium-Class 12
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
A
10⁵ Ω
B
10⁴ Ω
C
10⁶ Ω
D
10¹⁰ Ω
Correct Answer
Option A
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 Alternating Current
More from
What is the frequency called at which the amplitude of oscillation in a series RLC circuit is maximized?
RLC CircuitsPhysics
What condition is necessary for resonance to occur in an AC circuit?
ResonancePhysics
What is the relationship between rms voltage and the amplitude of ac voltage?
Power in AC CircuitsPhysics