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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
- At the first minimum adjacent to the central maximum of a single-slit diffraction
- A coil of N turns and mean cross-sectional area A is rotating with uniform angular
- Changing magnetic fields can set up current loops in nearby metal bodies
- The magnetic moment of a diamagnetic atom is
- An inductor is connected to an a.c. source when compared to voltage,
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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