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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
- Two coherent sources of different intensities send waves which interfere.
- An electric kettle takes 4A current at 220 V. How much time will it take to boil 1 kg
- When a magnet is taken towards a coil, the induced e.m.f. depends on
- Which of the following measurement is most precise?
- An alternating voltage of 220 V, 50 Hz frequency is applied across a capacitor
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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