Description : Kilowatt-hour is the unit of : (1) Energy (2) Power (3) Force (4) Momentum
Last Answer : (1) Energy Explanation: The kilowatt hour, or kilowatthour, is a unit of energy equal to 1000 watt hours or 3.6 mega-joules For constant power, energy in watt hours is the product of ... kilowatt hour is most commonly known as a billing unit for energy delivered to consumers by electric utilities.
Description : Kilowatt -hour is the unit of : (1) Energy (2) Power (3) Force (4) Momentum
Last Answer : Energy
Description : Which of the following pairs of physical quantities have the same dimensions? (1) Force and Power (2) Work and Power (3) Work and Energy (4) Momentum and Power
Last Answer : (3) Work and Energy Explanation: The term energy is used to describe the capacity of a system to do work on another system. Energy of all types (Surface Tension, Kinetic, Potential etc.) have the same dimension and unit as that of Work.
Last Answer : Work and Energy
Description : Energy transferred per unit charge is A. e.m.f B. current C. potential difference D. conventional current
Last Answer : potential difference
Description : Power is rate of doing work or the rate at which energy is supplied to the system. A constant force F is applied to a body of mass m.
Last Answer : Power is rate of doing work or the rate at which energy is supplied to the system. A constant force F ... expression for power in terms of F, m and t.
Description : A string of linear mass density 0.005 kg/m is stretched by a force F=2t^2 N
Last Answer : A string of linear mass density 0.005 kg/m is stretched by a force F=2t^2 N ( t is in sec) as shown in figure. ... 24.5 m/s C) 32 m/s D) 40 m/s
Description : If length ‘L’, force ‘F’ and time ‘T’ are taken as fundamental quantities, what would be the dimensional equation of mass and density?
Last Answer : If length ‘L’, force ‘F’ and time ‘T’ are taken as fundamental quantities, what would be the dimensional equation of mass and density?
Description : If the cohesive force (c), is 1.5 t/m2 , the density ) of the soil is 2.0 t/m3 , factor of safety (F) is 1.5 and stability factor (Sn) is 0.05, the safe height of a slope, is (A) 5 metres (B) 8 metres (C) 10 metres (D) 12 metres
Last Answer : (C) 10 metres
Description : E.M.F for a coil depends upon A. the cross sectional area B. no. of turns of wire C. the magnitude of magnetic flux density D. all of above
Last Answer : all of above
Description : Total number of magnetic field lines passing through an area is called A. magnetic flux density B. magnetic flux C. e.m.f D. voltage
Last Answer : magnetic flux
Description : A straight wire of length 0.20 m moves at a steady speed of 3.0 m s-1 at right angles to the magnetic field of flux density 0.10 T. The e.m.f induced across ends of wire is A. 0.5 V B. 0.06 V C. 0.05 V D. 0.04 V
Last Answer : 0.06 V
Description : E.M.F can be induced in a circuit by A. changing magnetic flux density B. changing area of circuit C. changing the angle D. all of above
Description : Bar is a unit of which one of the following? (1) Force (2) Energy (3) Pressure (4) Frequency
Last Answer : (3) Pressure Explanation: The bar is a unit of pressure defined as 100 kilopascals. It is about equal to the atmospheric pressure on Earth at sea level.
Description : Normal force exerted per unit area by gas on walls of container is A. temperature B. energy C. pressure D. friction
Last Answer : pressure
Description : What is defined as the force per unit area? A. Pressure B. Energy C. Work D. Power
Last Answer : Pressure
Description : What is the dependence of mechanical force per unit area of charged conductor on the surface charge density and the dielectric constant of the medium
Last Answer : What is the dependence of mechanical force per unit area of charged conductor on the surface charge density and the dielectric constant of the medium
Description : Drag co-efficient for flow past immersed body is the ratio of __________ to the product of velocity head and density. (A) Shear stress (B) Shear force (C) Average drag per unit projected area (D) None of these
Last Answer : (C) Average drag per unit projected area
Description : The force per unit length across such a line in the surface is called _________. a. force per length b. surface tension c. Pressure d. Density
Last Answer : surface tension
Description : Of the following terms, which is the product of force and time? Is it: w) impulse x) power y) energy z) work
Last Answer : ANSWER: W -- IMPULSE
Description : Two bodies kept at a certain distance feel a gravitational force F to each other. If the distance between them is made double the former distance, the force will be - (1) 2F (2) F/2 (3) 4F (4) F/4
Last Answer : (4) F/4
Description : : Moving a coil in and out of magnetic field induces A. force B. potential difference C. e.m.f D. voltage
Last Answer : e.m.f
Description : Two bodies kept at a certain distance feel a gravitational force F to each other. If the distance between them is made double the former distance, the force will be
Last Answer : 1F/4
Description : A liquid disturbed by stirring comes to rest due to – (1) density (2) surface tension (3) viscosity (4) centripetal force
Last Answer : (3) viscosity Explanation: It happens because of viscosity. The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. It is due to friction between neighboring parcels of the fluid that are moving at different velocities.
Description : If the magnetic flux density and current are at right angles, then component of force acting on the conductor is A. BIL cosθ B. BIL sinθ C. BIL tanθ D. BL sinθ
Last Answer : BIL sinθ
Description : Force on a moving charge in a uniform magnetic field depends uponA. magnetic flux density B. the charge on the particle C. the speed of particle D. all of above
Description : A liquid disturbed by stirring comes to rest due to (1) density (2) surface tension (3) viscosity (4) centripetal force
Last Answer : viscosity
Description : Is work and energy level and unit the same or different ?
Last Answer : Work and energy levels and units are the same.
Description : Which of the following have the same unit? (1) Work and power (2) Torque and moment of inertia (3) Work and torque (4) Torque and angular momentum
Last Answer : (3) Work and torque Explanation: The SI unit of work is the Newton-metre or joule (J). A Newton meter is also the SI unit of torque (also called "moment" or "moment of force").
Description : Which of the following have the same unit ? (1) Work and power (2) Torque and moment of inertia (3) Work and torque (4) Torque and angular momentum
Last Answer : Work and torque
Description : What is the unit of relative density? (1) kg/m (2) kg/m² (3) kg/m³ (4) It has no unit
Last Answer : (4) It has no unit Explanation: Relative density is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material. So, it is a dimensionless quantity and has no unit.
Description : 'Parsec' is the unit measurement of - (1) Density of stars (2) Astronomical distance (3) Brightness of heavenly bodies (4) Orbital velocity of giant stars
Last Answer : (2) Astronomical distance Explanation: The parsec (symbol: pc) is a unit of length used to measure large distances to astronomical objects outside the Solar System.
Description : 'Parsec' is the unit measurement of – (1) Density of stars (2) Astronomical distance (3) Brightness of heavenly bodies (4) Orbital velocity of giant stars
Last Answer : (2) Astronomical distance Explanation: Parsec is a unit of distance used in astronomy to measure large distances to objects outside our Solar System. It is equal to about 3.26 light years (3.086 x 1013 kilometres).
Description : Number of conduction electrons per unit volume is A. electron number B. number density C. proton number D. neutron numbe
Last Answer : number density
Description : What is the unit of relative density? (1) kg/m (2) kg/m2 (3) kg/m3 (4) It has no unit
Last Answer : It has no unit
Description : ‘Parsec’ is the unit measurement of (1) Density of stars (2) Astronomical distance (3) Brightness of heavenly bodies (4) Orbital velocity of giant stars
Last Answer : Astronomical distance
Description : An energy signal has G(f) = 20. Its energy density spectrum is A) 20 B) 100 C) 400 D) 800
Last Answer : 400
Description : An energy signal has G(f) = 10. Its energy density spectrum is: (1) 10 (2) 100 (3) 50 (4) 20
Last Answer : An energy signal has G(f) = 10. Its energy density spectrum is: 100.
Description : In a particular system, the units of length, mass and time are chosen to be 10 cm, 10 g and 0.1 s respectively. The unit of force in this system will be equivalent to – (1) 0.1 N (2) 1 N (3) 10 N (4) 100 N
Last Answer : (1) 0.1 N
Description : Tensile stress is equal to A. Force per unit area B. Force per unit volume C. Extension per unit length D. Extension per unit area
Last Answer : Force per unit area
Description : Stress is force applied on A. volume B. cross sectional area C. unit length D. across diagonal
Last Answer : cross sectional area
Description : Normal force acting per unit cross sectional area is called A. weight B. pressure C. volume D. friction
Description : In a particular system, the units of length, mass and time are chosen to be 10 cm, 10 g and 0.1 s respectively. The unit of force in this system will be equivalent to (1) 0.1 N (2) 1 N (3) 10 N (4) 100 N
Last Answer : 0.1 N
Description : If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same - (1) velocity (2) momentum (3) acceleration (4) kinetic energy
Last Answer : (2) momentum Explanation: If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same momentum.
Description : Kilowatt-hour (KWH) is the unit of - (1) power (2) resistance (3) resistivity (4) energy
Last Answer : (4) energy Explanation: The kilowatt hour (symbol kWh, kW h or kW h) is a unit of energy equal to 3.6 megajoules. If the energy is being transmitted or used at a constant rate (power) over a period of time, the total energy in kilowatt hours is the power in kilowatts multiplied by the time in hours.
Description : 'Kilowatt-hour' is the unit of - (1) potential difference (2) electric power (3) electric energy (4) electric potential
Last Answer : (3) electric energy Explanation: The kilowatt hour (symbolized kW h as per SI) is a composite unit of energy equivalent to one kilowatt (1 kW) of power sustained for one hour.
Description : A kilowatt-hour is unit of – (1) Energy (2) Power (3) Electric charge (4) Electric current
Last Answer : (1) Energy Explanation: Work is defined as a force acting through a distance (a length of space), energy is always equivalent to the ability to exert pulls or pushes against the basic forces of ... in joules, but in many fields other units, such as kilowatt-hours and kilocalories, are customary.
Description : Light year is the unit of - (1) Frequency (2) Distance (3) Energy (4) Power
Last Answer : (2) Distance Explanation: A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km.
Description : A kilowatt-hour is unit of (1) Energy (2) Power (3) Electric charge (4) Electric current