XII Physics Solved Numericals | Ch# 20 AC Circuits

Board: Sindh Boards Class : 12, Second Year Subject: Physics Unit #20 AC Circuits Numericals: 1 A resistor (R) of 20 ohms is connected in series with a capacitor (C) of 10 1.1F in an AC circuit with a frequency of 50 Hz. Calculate the total impedance? 2. For an inductor with an inductance (L) of 0.5 H and a frequency of 100 Hz, calculate the inductive reactance? 3. In an RL circuit, the resistance (R) is 30 ohms, and the inductance (L) is 0.2 H. Calculate the total impedance at a frequency of 60 Hz? 4. In an RC circuit, the resistance (R) is 50 ohms, and the capacitance (C) is 20 pF. Calculate the capacitive reactance? 5. An AC circuit has a resistance of 40 ohms, an inductive reactance of 30 ohms, and a capacitive reactance of 20 ohms. Draw the impedance triangle and calculate the total impedance? 6. In a series RL circuit, the resistance (R) is 25 ohms, and the inductance (L) is 0.1 H. Calculate the phase angle and impedance at a frequency of 80 Hz? 7. In a parallel RC circuit, the resistance (R) is 60 ohms, and the capacitance (C) is 30 pF. Calculate the total current flowing through the circuit at a frequency of 120 Hz? (60 V) 8. In an RLC circuit, the resistance (R) is 50 ohms, the inductance (L) is 0.1 H, and the capacitance (C) is 50 pF. Calculate the resonance frequency?