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Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series across a potential difference of 420 V. Which bulb will work at above its rated voltage
Options
(a) 40 W
(b) 60 W
(c) both 40 W and 60 W
(d) none of the bulbs
Correct Answer:
40 W
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Planck’s constant has same dimensions as those of
- The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV,
- If by mistake voltmeter is connected in series and ammeter in parallel then
- A 120 m long train is moving in a direction with speed 20 m/s.A train B moving
- The horizontal range and the maximum height of a projectile are equal
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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