An electric heater is a household appliance that operates based on the heating effect of electric current. When electric current flows through the heating element, it converts electrical energy into heat energy, providing warmth.
Category: Class 10 Science
NCERT Solutions for Class 10 Science and important questions for CBSE class 10 for session 2020-2021
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An electric lamp of 100 watts used for 10 hours in a day consumes 1 kilowatt hour (kWh) of energy, which is equivalent to 1 unit of energy. This is calculated by converting the total watt-hours into kilowatt-hours.
If a 100-watt electric bulb burns for 10 hours, it consumes 1 kilowatt hour (kWh) of electricity. Since electricity is sold at the rate of Rs 5 per unit, the cost of running the bulb for 10 hours will be ...
Kilowatt hour (kWh) is a unit of electrical energy. It measures the amount of energy consumed or produced over time. One kilowatt hour represents the energy used by a device with a power rating of one kilowatt operating for one ...
The electrolyte used in a car battery is sulfuric acid. Sulfuric acid is crucial for the chemical reactions that occur within the battery, allowing it to store and release electrical energy effectively. It interacts with the lead plates inside the ...