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Two electric bulbs have tungsten filament of the same thickness. If one of them gives 60 W and the other gives 100 W, then-
  • a)
    60 W and 100 W lamp filaments have equal length
  • b)
    60 W lamp filament has a shorter length
  • c)
    100 W lamp filament has a longer length
  • d)
    60 W lamp filament has a longer length
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Two electric bulbs have tungsten filament of the same thickness. If o...
For more watt bulb, less resistance will be there so, the length of that bulb will be lower.
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Two electric bulbs have tungsten filament of the same thickness. If o...
For more watt bulb, less resistance will be there so, the length of that bulb will be lower.
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Community Answer
Two electric bulbs have tungsten filament of the same thickness. If o...
Explanation:

The power of an electric bulb is directly related to the rate at which it consumes electrical energy. The higher the power rating of a bulb, the more electrical energy it consumes and the brighter it shines.

The power of an electric bulb is given by the equation:

Power (P) = Voltage (V) x Current (I)

Since the voltage across the two bulbs is the same, the power of the bulbs is directly proportional to the current flowing through them.

The current through a bulb is given by Ohm's law:

Current (I) = Voltage (V) / Resistance (R)

The resistance of a filament bulb is directly related to the length and inversely related to the cross-sectional area of the filament.

Let's assume that the two bulbs have the same resistance.

Case 1: 60W bulb
Since the power of the 60W bulb is less than that of the 100W bulb, its resistance must be higher.

If the resistance of the 60W bulb is higher, it means that its filament is longer compared to the filament of the 100W bulb.

Case 2: 100W bulb
Since the power of the 100W bulb is greater than that of the 60W bulb, its resistance must be lower.

If the resistance of the 100W bulb is lower, it means that its filament is shorter compared to the filament of the 60W bulb.

Therefore, the 60W lamp filament has a longer length compared to the 100W lamp filament.

Conclusion:
Hence, the correct answer is option 'D' - The 60W lamp filament has a longer length.
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Two electric bulbs have tungsten filament of the same thickness. If one of them gives 60 W and the other gives 100 W, then-a)60 W and 100 W lamp filaments have equal lengthb)60 W lamp filament has a shorter lengthc)100 W lamp filament has a longer lengthd)60 W lamp filament has a longer lengthCorrect answer is option 'D'. Can you explain this answer?
Question Description
Two electric bulbs have tungsten filament of the same thickness. If one of them gives 60 W and the other gives 100 W, then-a)60 W and 100 W lamp filaments have equal lengthb)60 W lamp filament has a shorter lengthc)100 W lamp filament has a longer lengthd)60 W lamp filament has a longer lengthCorrect answer is option 'D'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Two electric bulbs have tungsten filament of the same thickness. If one of them gives 60 W and the other gives 100 W, then-a)60 W and 100 W lamp filaments have equal lengthb)60 W lamp filament has a shorter lengthc)100 W lamp filament has a longer lengthd)60 W lamp filament has a longer lengthCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two electric bulbs have tungsten filament of the same thickness. If one of them gives 60 W and the other gives 100 W, then-a)60 W and 100 W lamp filaments have equal lengthb)60 W lamp filament has a shorter lengthc)100 W lamp filament has a longer lengthd)60 W lamp filament has a longer lengthCorrect answer is option 'D'. Can you explain this answer?.
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