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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
- In Young’s experiment, the ratio of maximum to minimum intensities of the fringe
- The current through an inductor changes from 3 A to 2 A is 1 m/s. If induced e.m.f.
- The potential energy of a 1 kg particle free to move along the x-axis is given by
- In Young’s double silt experiment if the distance between the two slits
- A rocket with a lift-off mass 3.5 x 10⁴ kg is blasted upwards with an initial acceleration
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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