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If current flows through two lamps arran...

If current flows through two lamps arranged:
(a) in series,
(b) in parallel,
and the filament of one lamps breaks, what happens to the other lamp? Explain your answer.

Text Solution

Verified by Experts

The correct Answer is:
(a) In series: The other lamp stops glowing (b) In parallel: The other lamp keeps glowing
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LAKHMIR SINGH & MANJIT KAUR-ELECTRICITY -Exercise
  1. Consider the circuit given below where A,B and C are three identical l...

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  2. How do you think the brightness of two lamps arranged in parallel comp...

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  3. If current flows through two lamps arranged: (a) in series, (b) in...

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  4. The figure below shows a variable resistor in a dimmer switch. Ho...

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  5. State two factors on which the electrical energy consumed by an electr...

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  6. Which one has a higher electrical resistance: a 100 watt bulb or a 60 ...

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  7. COMMERCIAL UNIT OF ENERGY

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  8. An electric bulb is rated at 220V, 100W. What is its resistance?

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  9. What is the SI unit of (i) electric energy, and (ii) electric power?

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  10. Distinguish between kilowatt and kilowatt hour.

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  11. Name the physical quantity whose unit is watt.

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  12. What is the meaning of the symbol kWh? Which quantity does it represen...

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  13. If the potential difference between the end of a wire of mixed resista...

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  14. An electric lamp is labelled 12V, 36W. This indicates that it should b...

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  15. What current will be taken by a 920 W appliance if the supply voltage ...

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  16. Define watt. Write down an equation linking watts, volts and amperes.

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  17. Define watt-hour. How many joules are equal to 1 watt-hour?

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  18. How much energy is consumed when a current of 5 amperes flows through ...

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  19. An electric bulb is connected to a 220V power supply line. If the bulb...

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  20. In which of the following cases more electrical energy is consumed per...

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