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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.
Related Questions: - When a metallic surface is illuminated with radiation of wavelength λ,
- A stone falls freely under gravity.It covers distances h₁,h₂ and h₃
- A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When a metallic surface is illuminated with radiation of wavelength λ,
- A stone falls freely under gravity.It covers distances h₁,h₂ and h₃
- A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field
- Newton postulated his corpuscular theory on the basis of
- The magnetic flux linked with a circuit of resistance 100Ω increases from 10 to 60 Wb.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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