Undergraduate

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 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, 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, 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 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 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, which of the following remains constant? (2022)
  • A. Pressure
  • B. Volume
  • C. Temperature
  • D. Internal Energy
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 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
Q. In an RLC circuit, if the resistance is increased, what happens to the quality factor (Q)? (2021)
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. In an RLC series circuit, if the inductive reactance is greater than the capacitive reactance, the circuit is said to be: (2022)
  • A. Resonant
  • B. Inductive
  • C. Capacitive
  • D. Purely resistive
Q. In an RLC series circuit, if the resistance is 10 Ω, inductance is 0.1 H, and capacitance is 100 μF, what is the resonant frequency? (2023)
  • A. 50 Hz
  • B. 100 Hz
  • C. 159 Hz
  • D. 200 Hz
Q. In an RLC series circuit, if the total impedance is 50 ohms and the resistance is 30 ohms, what is the reactance? (2020)
  • A. 40 ohms
  • B. 30 ohms
  • C. 20 ohms
  • D. 10 ohms
Q. In ecological succession, what is the term for the first species to colonize a barren environment? (2022)
  • A. Pioneer species
  • B. Climax community
  • C. Keystone species
  • D. Invasive species
Q. In electrolysis, if 1 mole of electrons is transferred, how many grams of copper can be deposited from Cu²⁺?
  • A. 63.5 g
  • B. 31.75 g
  • C. 127 g
  • D. 159 g
Q. In electrolysis, if the current is 2 A and the time is 30 minutes, how many moles of electrons are transferred?
  • A. 0.1 mol
  • B. 0.2 mol
  • C. 0.3 mol
  • D. 0.4 mol
Q. In electrolysis, the process of oxidation occurs at the: (2023)
  • A. Anode
  • B. Cathode
  • C. Electrolyte
  • D. None of the above
Q. In electrolysis, the process of oxidation occurs at the: (2023) 2023
  • A. Anode
  • B. Cathode
  • C. Electrolyte
  • D. None of the above
Q. In electrolysis, what is produced at the anode when NaCl solution is electrolyzed? (2022)
  • A. Hydrogen gas
  • B. Chlorine gas
  • C. Sodium metal
  • D. Oxygen gas
Q. In flowering plants, the ovary develops into which part after fertilization? (2023)
  • A. Seed
  • B. Fruit
  • C. Flower
  • D. Leaf
Q. In flowering plants, the process of pollination involves the transfer of pollen from the anther to the: (2021)
  • A. Ovary
  • B. Style
  • C. Stigma
  • D. Sepal
Q. In how many ways can 3 prizes be awarded to 5 students? (2021)
  • A. 60
  • B. 100
  • C. 120
  • D. 80
Q. In how many ways can 4 different flags be arranged on a pole? (2015)
  • A. 24
  • B. 12
  • C. 36
  • D. 48
Q. In how many ways can 4 different fruits be selected from 10 fruits?
  • A. 210
  • B. 120
  • C. 240
  • D. 300
Q. In how many ways can 4 different prizes be distributed among 10 students? (2023)
  • A. 5040
  • B. 10000
  • C. 2400
  • D. 120
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