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Two bulbs when connected in parallel to a source take 60W each, the power consumed, when they are connected in series with the same source is
Options
(a) 15W
(b) 30W
(c) 60W
(d) 120W
Correct Answer:
30W
Explanation:
In series, P = P₁P₂ / P₁+P₂
Given: P₁ = P₂ = 60
Therefore, Power P = (60 × 60) / (60 × 60) = 30 W.
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Topics: Current Electricity
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- 6Ω and 12Ω resistors are connected in parallel. This combination is connected
- A sound absorber attenuates the sound level by 20 dB. The intensity decreases
- For a parallel beam of monochromatic light of wavelength λ diffraction is produced
- 4.0 g of a gas occupies 22.4 litres at NTP. The specific heat capacity of the gas
- An electron having charge e and mass m is moving in a uniform electric field E.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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