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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
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Identify the wrong statement with reference to solar cell
- The respective speeds of the molecules are 1,2,3,4 and 5 km/s.
- Two cells, having the same e.m.f. are connected in series through an external resistance
- The work function of sodium is 2.3 eV. The threshold wavelength of sodium will be
- A electric dipole is placed at an angle of 30⁰ to a non-uniform electric field.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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