Question : Which of the following is correctly matched?
Option 1: Electric force - kilowatt minute
Option 2: Electric potential - kilowatt seconds
Option 3: Electric energy - kilowatt-hour
Option 4: Electric power - kilohour
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Correct Answer: Electric energy - kilowatt-hour
Solution : The correct answer is Electric energy - kilowatt-hour.
The unit of energy usually used to measure electricity consumption is a kilowatt-hour (kWh). It is the amount of energy used over an hour by a device with a 1 kW power rating. The precise unit of measurement used by electric supply companies to bill you is kWh. One unit of electricity is frequently referred to as one kilowatt-hour (kWh).
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Question : A kilowatt-hour is a unit of
Option 1: energy
Option 2: power
Option 3: electric charge
Option 4: electric current
Question : Which of the following pairs of physical quantities have the same dimensions?
Option 1: Force and Power
Option 2: Work and Power
Option 3: Work and Energy
Option 4: Momentum and Power
Question : In a water-lifting electric pump, we convert
Option 1: electrical energy into potential energy
Option 2: kinetic energy into electrical energy
Option 3: kinetic energy into potential energy
Option 4: electrical energy into kinetic energy
Question : In which form is the supplied heat energy stored during change in temperature of substance?
Option 1: Heat energy
Option 2: Kinetic energy
Option 3: Potential energy
Option 4: Both kinetic and potential energy
Question : According to the Ministry of Power, Government of India, which is the largest energy source of India? (as of March 2023)
Option 1: Hydro power
Option 2: Tidal energy
Option 3: Coal
Option 4: Solar energy
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