AC Circuits
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Q. A capacitor of 10μF is connected to an AC source of frequency 50Hz. What is the capacitive reactance? (2022)
Q. A capacitor of 10μF is connected to an AC source of frequency 60Hz. What is the capacitive reactance? (2020)
Q. A capacitor of capacitance C is connected to an AC source of frequency f. What is the capacitive reactance? (2020)
Q. A circuit has a resistance of 10 Ω and a reactance of 10 Ω. What is the impedance of the circuit? (2020)
Q. A circuit has a resistance of 10Ω and a reactance of 5Ω. What is the impedance of the circuit? (2021)
Q. A circuit has a resistance of 10Ω and a reactance of 5Ω. What is the impedance? (2020)
Q. A coil has an inductance of 0.5 H and is connected to a 50 Hz AC supply. What is the inductive reactance? (2020)
Q. A resistor of 10 Ω and a capacitor of 100 μF are connected in series to an AC source of frequency 50 Hz. What is the capacitive reactance? (2020)
Q. If a capacitor is charged to 12V and has a capacitance of 6μF, what is the stored energy? (2022)
Q. If the capacitance in an AC circuit is increased, what happens to the capacitive reactance? (2023)
Q. If the current in an AC circuit is given by I(t) = I0 cos(ωt), what is the RMS current? (2023)
Q. If the current in an AC circuit is I(t) = 5√2 sin(100t + π/4), what is the RMS current? (2021)
Q. If the frequency of an AC source is doubled, how does the inductive reactance change? (2020)
Q. If the frequency of an AC source is doubled, what happens to the inductive reactance? (2014)
Q. If the frequency of an AC source is doubled, what happens to the inductive reactance of an inductor? (2021)
Q. If the frequency of an AC source is doubled, what happens to the reactance of a capacitor? (2023)
Q. If the frequency of an AC source is doubled, what happens to the reactance of an inductor? (2023)
Q. If the inductance of a coil is 0.5H and the frequency is 60Hz, what is the inductive reactance? (2023)
Q. If the inductive reactance of a coil is 30Ω and the resistance is 10Ω, what is the total impedance? (2018)
Q. If the power factor of an AC circuit is 0.8, what is the angle between the current and voltage? (2021)
Q. If the total current in an AC circuit is 5A and the voltage is 120V, what is the impedance? (2023)
Q. If the total impedance in an AC circuit is 20Ω and the current is 2A, what is the voltage across the circuit? (2023)
Q. If the voltage across a capacitor in an AC circuit is 100 V and the capacitive reactance is 50 ohms, what is the current? (2020)
Q. If the voltage across a capacitor in an AC circuit is 100 V and the capacitive reactance is 50 Ω, what is the current through the capacitor? (2021)
Q. If the voltage across a capacitor in an AC circuit is 100 V and the capacitive reactance is 50 ohms, what is the current through the capacitor? (2021)
Q. If the voltage across a capacitor in an AC circuit is 100V and the capacitive reactance is 50Ω, what is the current through the capacitor? (2023)
Q. If the voltage across a capacitor in an AC circuit is 100V and the capacitive reactance is 50 ohms, what is the current? (2023)
Q. If the voltage across a capacitor in an AC circuit is 100V and the capacitive reactance is 50Ω, what is the current? (2021)
Q. If the voltage across a capacitor is 100V and the capacitive reactance is 50 ohms, what is the current through the capacitor? (2022)
Q. If the voltage across a resistor is 240V and the resistance is 60 ohms, what is the current flowing through it? (2020)
