Q. What is the standard unit of time in the SI system? (2020)
  • A. Minute
  • B. Hour
  • C. Second
  • D. Day
Q. What is the term for the energy required to change a substance from liquid to gas? (2023)
  • A. Latent heat of fusion
  • B. Latent heat of vaporization
  • C. Specific heat
  • D. Thermal energy
Q. What is the term for the heat required to change a substance from solid to liquid at its melting point? (2019)
  • A. Latent heat of fusion
  • B. Latent heat of vaporization
  • C. Specific heat
  • D. Sensible heat
Q. What is the term for the heat required to change a substance from solid to liquid at constant temperature? (2019)
  • A. Latent heat of fusion
  • B. Latent heat of vaporization
  • C. Specific heat
  • D. Sensible heat
Q. What is the term for the phenomenon where a liquid rises in a narrow tube against gravity? (2019)
  • A. Capillarity
  • B. Viscosity
  • C. Surface Tension
  • D. Hydrostatic Pressure
Q. What is the term for the phenomenon where a liquid's surface behaves like a stretched elastic membrane?
  • A. Surface Tension
  • B. Capillarity
  • C. Viscosity
  • D. Hydrostatic Pressure
Q. What is the term for the ratio of the density of a substance to the density of a reference substance, typically water?
  • A. Specific gravity
  • B. Viscosity
  • C. Pressure
  • D. Buoyancy
Q. What is the term for the temperature at which a substance changes from liquid to gas? (2023)
  • A. Melting point
  • B. Boiling point
  • C. Freezing point
  • D. Sublimation point
Q. What is the total current flowing in a circuit with a 9V battery and a total resistance of 3 ohms? (2020)
  • A. 1 A
  • B. 2 A
  • C. 3 A
  • D. 4 A
Q. What is the total current flowing in a circuit with three resistors in parallel, each carrying 2 A? (2021)
  • A. 2 A
  • B. 4 A
  • C. 6 A
  • D. 8 A
Q. What is the total current flowing in a parallel circuit with two branches carrying 2 A and 3 A respectively? (2023)
  • A. 5 A
  • B. 6 A
  • C. 1 A
  • D. 2.5 A
Q. What is the total current in a circuit with a 10Ω resistor and a 5Ω resistor in series connected to a 30V battery? (2021)
  • A. 2A
  • B. 3A
  • C. 4A
  • D. 5A
Q. What is the total current in a circuit with a 12V battery and two 6Ω resistors in series? (2021)
  • A. 1A
  • B. 2A
  • C. 3A
  • D. 4A
Q. What is the total current in a circuit with a 9V battery and two 3Ω resistors in series? (2021)
  • A. 1A
  • B. 2A
  • C. 3A
  • D. 4A
Q. What is the total current in a circuit with two branches, one carrying 2A and the other 3A? (2021)
  • A. 5A
  • B. 6A
  • C. 3A
  • D. 2A
Q. What is the total current in a circuit with two branches, one carrying 3A and the other 5A? (2021)
  • A. 2A
  • B. 3A
  • C. 5A
  • D. 8A
Q. What is the total current in a parallel circuit with two branches carrying 2 A and 3 A respectively? (2023)
  • A. 5 A
  • B. 6 A
  • C. 1 A
  • D. 2.5 A
Q. What is the total mechanical energy of an object in free fall just before it hits the ground? (2022)
  • A. Zero
  • B. Potential energy only
  • C. Kinetic energy only
  • D. Total energy is conserved
Q. What is the total power consumed in a circuit with a power factor of 0.6, if the apparent power is 100 VA? (2023)
  • A. 60 W
  • B. 100 W
  • C. 40 W
  • D. 80 W
Q. What is the total resistance of two resistors, 4 ohms and 6 ohms, connected in series? (2021)
  • A. 10 ohms
  • B. 24 ohms
  • C. 2.4 ohms
  • D. 0.67 ohms
Q. What is the typical current-voltage characteristic of a diode in reverse bias? (2019)
  • A. Linear
  • B. Exponential
  • C. Constant
  • D. Very small reverse saturation current
Q. What is the typical forward voltage drop across a silicon diode? (2023)
  • A. 0.2 V
  • B. 0.7 V
  • C. 1.5 V
  • D. 2.0 V
Q. What is the unit of energy in the SI system? (2023)
  • A. Joule
  • B. Watt
  • C. Newton
  • D. Pascal
Q. What is the unit of inductive reactance? (2020)
  • A. Ohm
  • B. Henry
  • C. Farad
  • D. Tesla
Q. What is the unit of magnetic moment? (2023)
  • A. Ampere-meter
  • B. Tesla
  • C. Weber
  • D. Newton-meter
Q. What is the unit of measurement for electric current in the SI system? (2022)
  • A. Volt
  • B. Ampere
  • C. Ohm
  • D. Coulomb
Q. What is the unit of measurement for electric current? (2019)
  • A. Volt
  • B. Ohm
  • C. Ampere
  • D. Watt
Q. What is the unit of pressure in SI units? (2023)
  • A. Pascal
  • B. Bar
  • C. Atmosphere
  • D. Torr
Q. What is the unit of pressure in SI? (2023)
  • A. Pascal
  • B. Bar
  • C. Atmosphere
  • D. Torr
Q. What is the value of the gravitational constant (G) in SI units? (2023)
  • A. 6.67 x 10^-11 N m²/kg²
  • B. 9.81 m/s²
  • C. 3.00 x 10^8 m/s
  • D. 1.60 x 10^-19 C
Showing 721 to 750 of 902 (31 Pages)
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