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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
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Number of electrons in one mC charge, given e=1.6×10⁻¹⁹ C, will be
- Figure below shows two paths that may be taken by a gas to go from a state A
- The work function for metals A,B abd C are respectively 1.92 eV,2.0 eV and 5 eV.
- An aeroplane flies 400m due to North and then 300m due to south and then flies
- A satellite in a circular orbit of radius R has a period of 4 hours. Another satellite
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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