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Q. In an AC circuit, if the voltage is given by V(t) = V_0 sin(ωt), what is the expression for the current if the circuit is purely inductive? (2023)
  • A. I(t) = I_0 sin(ωt)
  • B. I(t) = I_0 sin(ωt - π/2)
  • C. I(t) = I_0 cos(ωt)
  • D. I(t) = I_0 cos(ωt + π/2)
Q. In an AC circuit, if the voltage is given by V(t) = V₀ sin(ωt), what is the expression for the current through a capacitor? (2022)
  • A. I(t) = C dV/dt
  • B. I(t) = V₀ sin(ωt)
  • C. I(t) = V₀ cos(ωt)
  • D. I(t) = V₀ sin(ωt)/R
Q. In an AC circuit, if the voltage is V(t) = 120 sin(ωt), what is the RMS voltage? (2017)
  • A. 120 V
  • B. 60 V
  • C. 84.85 V
  • D. 100 V
Q. In an AC circuit, the average power consumed is given by which formula? (2022)
  • A. P = VI
  • B. P = VI cos(φ)
  • C. P = V²/R
  • D. P = I²R
Q. In an AC circuit, the current lags behind the voltage by 90 degrees in which component? (2020)
  • A. Resistor
  • B. Capacitor
  • C. Inductor
  • D. Transformer
Q. In an AC circuit, the current lags behind the voltage by 90 degrees in which type of circuit? (2020)
  • A. Resistive
  • B. Inductive
  • C. Capacitive
  • D. RLC
Q. In an AC circuit, the current lags the voltage by 90 degrees in which of the following components? (2020)
  • A. Resistor
  • B. Capacitor
  • C. Inductor
  • D. Transformer
Q. In an AC circuit, the current lags the voltage by 90 degrees in which type of circuit? (2020)
  • A. Resistive
  • B. Capacitive
  • C. Inductive
  • D. RLC
Q. In an AC circuit, the voltage is given by V(t) = V0 sin(ωt). What is the peak voltage if V0 = 10V? (2021)
  • A. 5V
  • B. 10V
  • C. 15V
  • D. 20V
Q. In an AC circuit, the voltage is given by V(t) = V0 sin(ωt). What is the peak voltage? (2021)
  • A. V0
  • B. ω
  • C. t
  • D. 0
Q. In an AC circuit, what is the phase difference between voltage and current in a purely inductive circuit? (2021)
  • A. 0 degrees
  • B. 90 degrees
  • C. 180 degrees
  • D. 270 degrees
Q. In an AC circuit, what is the relationship between the average power and the RMS voltage? (2023)
  • A. P = V_rms²/R
  • B. P = V_peak²/R
  • C. P = V_rms/R
  • D. P = V_peak/R
Q. In an AC circuit, what is the unit of reactance? (2019)
  • A. Ohm
  • B. Farad
  • C. Henry
  • D. Volt
Q. In an AC generator, the induced EMF is maximum when the coil is positioned at what angle to the magnetic field?
  • A. 0 degrees
  • B. 45 degrees
  • C. 90 degrees
  • D. 180 degrees
Q. In an adiabatic process, the relationship between pressure and volume for an ideal gas is given by which equation? (2020)
  • A. PV^n = constant
  • B. PV = nRT
  • C. P1V1 = P2V2
  • D. V/T = constant
Q. In an adiabatic process, the temperature of an ideal gas decreases. What happens to its pressure?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Depends on volume
Q. In an adiabatic process, which of the following is true? (2020)
  • A. Heat is absorbed from the surroundings
  • B. Heat is released to the surroundings
  • C. No heat is exchanged
  • D. Temperature remains constant
Q. In an adiabatic process, which of the following remains constant? (2020)
  • A. Temperature
  • B. Pressure
  • C. Internal Energy
  • D. Enthalpy
Q. In an ecosystem, which of the following organisms is known as a primary consumer? (2019)
  • A. Herbivores
  • B. Carnivores
  • C. Decomposers
  • D. Producers
Q. In an ecosystem, which of the following organisms is known as a primary producer? (2021)
  • A. Herbivores
  • B. Carnivores
  • C. Decomposers
  • D. Plants
Q. In an electrochemical cell, the anode is where: (2019)
  • A. Oxidation occurs
  • B. Reduction occurs
  • C. Electrons are gained
  • D. Ions are produced
Q. In an isochoric process, what remains constant? (2021)
  • A. Pressure
  • B. Volume
  • C. Temperature
  • D. Heat
Q. In an isochoric process, which of the following remains constant? (2022)
  • A. Pressure
  • B. Volume
  • C. Temperature
  • D. Internal Energy
Q. In an isothermal process, the temperature of an ideal gas remains constant. If the volume of the gas is doubled, what happens to the pressure? (2020)
  • A. It doubles
  • B. It halves
  • C. It remains constant
  • D. It quadruples
Q. In an isothermal process, the temperature of the gas remains constant. What can be said about the internal energy of an ideal gas? (2020) 2020
  • A. It increases
  • B. It decreases
  • C. It remains constant
  • D. It varies with pressure
Q. In an isothermal process, the temperature of the system remains: (2023)
  • A. Constant
  • B. Increases
  • C. Decreases
  • D. Varies
Q. In an RLC circuit, if the inductive reactance is 10Ω and capacitive reactance is 5Ω, what is the net reactance? (2020)
  • A.
  • B. 10Ω
  • C. 15Ω
  • D.
Q. In an RLC circuit, if the inductive reactance is 30Ω and capacitive reactance is 20Ω, what is the net reactance? (2020)
  • A. 10Ω
  • B. 50Ω
  • C. 30Ω
  • D. 20Ω
Q. In an RLC circuit, if the resistance is 10Ω, the inductance is 0.1H, and the capacitance is 20μF, what is the total impedance at 50Hz? (2022)
  • A. 10Ω
  • B. 15.81Ω
  • C. 20Ω
  • D. 25Ω
Q. In an RLC circuit, if the resistance is 6Ω, inductive reactance is 8Ω, and capacitive reactance is 4Ω, what is the total impedance? (2021)
  • A. 10Ω
  • B. 12Ω
  • C. 14Ω
  • D. 16Ω
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