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Which electric heating devices in your h...

Which electric heating devices in your home do you think have resistors which control the flow of electricity?

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The correct Answer is:
Electric iron; Electric oven;Water heater (Geyser); Room heater (Convector)
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LAKHMIR SINGH & MANJIT KAUR-ELECTRICITY -Exercise
  1. (a) How does the wire in the filament of a light bulb behave different...

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  2. Two exactly similar heating resistances are connected (i) in series, a...

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  3. Which electric heating devices in your home do you think have resistor...

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  4. What does an electric circuit mean ?

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  5. Define the unit of current.

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  6. Calculate the number of electrons consituting one coulomb of charge.

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  7. Name a device that helps to maintain a potential difference across a c...

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  8. What is meant by saying that the potential difference between two poin...

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  9. How much energy is given to each coulomb of charge passing through a 6...

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  10. On what factors does the resistance of a conductor depend ?

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  11. Will current flow more easily through a thick wire or a thin wire of t...

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  12. Let the resistance of an electrical component remain constant while th...

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  13. Why are coils of electric toasters and electric irons made of an alloy...

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  14. Draw a schematic diagram of a circuit consisting of a battery of three...

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  15. Judge the equivalent resistance when the following are connected in pa...

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  16. An electric lamp of 100 Omega, a toaster of resistance 50 Omega and a ...

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  17. What are the advantages of connecting electrical devices in parallel w...

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  18. How can three resistors of resistances 2 Omega,3 Omega, and 6 Omega be...

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  19. What is : (a) the highest (b) the lowest total resistances that can b...

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  20. Why does the cord of an electric heater not glow while the heating ele...

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