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Electricity | Physics

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    Basics of Electricity
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  • 1. What is electricity? a) A type of gas b) A form of energy c) A kind of water flow d) A chemical reaction
    b) A form of energy
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  • 2. Which one is a conductor of electricity? a) Wood b) Plastic c) Copper d) Rubber
    c) Copper
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  • 3. Which one is an insulator? a) Iron b) Aluminium c) Glass d) Silver Answer: c) Glass
    c) Glass
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  • 4. A complete path for electricity to flow is called: a) Wire b) Battery c) Circuit d) Switch
    c) Circuit
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  • 5. Which component stores chemical energy and provides electrical energy? a) Bulb b) Battery c) Switch d) Wire
    b) Battery
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  • 6. What happens if a circuit is open? a) Electricity flows b) The bulb glows c) No current flows d) The battery explodes
    c) No current flows
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  • 7. Which component is used to control electricity by turning it on or off? a) Wire b) Switch c) Bulb d) Resistor
    b) Switch
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  • 8. What does a bulb do in a circuit? a) Stores energy b) Produces light c) Stops current d) Controls flow
    b) Produces light
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  • 9. Why do we need electricity? a) To make food tastier b) To power machines, lights, and devices c) To make metals heavier d) To cool water
    b) To power machines, lights, and devices
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  • 10. Which material is often used for covering wires? a) Metal b) Plastic c) Paper d) Wood
    b) Plastic
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  • 11. Which of these is needed for electricity to flow in a circuit? A) Open switch B) Closed switch C) No battery D) Plastic wire
    B) Closed switch
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  • 12. Which one is dangerous and should be avoided? a) Switching off devices b) Using wet hands with electricity c) Wearing rubber gloves d) Covering sockets
    b) Using wet hands with electricity
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  • 13. What do wires do in a circuit? a) Store electricity b) Provide a path for current c) Produce heat d) Act as switches
    b) Provide a path for current
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  • 14. Why are insulators important? a) They let current flow easily b) They stop electricity from escaping c) They make bulbs brighter d) They increase battery life
    b) They stop electricity from escaping
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  • 15. What is needed for a circuit to work? a) Battery + Wires + Load (e.g., bulb) b) Water + Bulb c) Switch only d) Wire only
    a) Battery + Wires + Load (e.g., bulb)
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  • 16. Electricity is dangerous because: a) It is invisible b) It can cause shocks, burns, and fires c) It is too noisy d) It moves too slowly
    b) It can cause shocks, burns, and fires
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