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FAQs on Electricity - Class 10

1. What is electricity and how does it work?
Ans. Electricity is the flow of electric charge through a conductor. It is caused by the movement of electrons, which carry negative charge. When an electric current flows through a wire, it creates a magnetic field around the wire. This flow of electrons can be harnessed and used to power various devices.
2. What are the different sources of electricity generation?
Ans. There are various sources of electricity generation, including fossil fuels such as coal, natural gas, and oil. Renewable sources such as solar power, wind power, hydroelectric power, and geothermal energy are also used to generate electricity. Nuclear power is another source of electricity, which harnesses the energy produced by nuclear reactions.
3. How is electricity transmitted from power plants to our homes?
Ans. Electricity is transmitted from power plants to our homes through a network of power lines known as the electrical grid. High voltage electricity is generated at power plants and then transformed into lower voltages for distribution. It is then transmitted over long distances using transmission lines and substation transformers. Finally, it reaches our homes through distribution lines and enters our households through service cables.
4. What are some common electrical safety measures to follow?
Ans. To ensure electrical safety, it is important to follow some common measures. These include: - Avoid overloading electrical circuits by using too many appliances at once. - Keep electrical cords and wires away from heat sources or water to prevent damage. - Regularly inspect electrical outlets, switches, and cords for any signs of damage or wear. - Use proper grounding techniques to prevent electric shocks. - Never touch electrical equipment with wet hands or while standing on a wet surface.
5. How can electricity be conserved in our daily lives?
Ans. Electricity conservation is crucial for reducing energy consumption and minimizing environmental impact. Some ways to conserve electricity in our daily lives include: - Switching off lights, fans, and other electrical appliances when not in use. - Using energy-efficient appliances and light bulbs. - Insulating homes to reduce the need for heating or cooling. - Opting for natural lighting during the day. - Unplugging electronic devices when fully charged or not in use for an extended period of time.
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