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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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- The electric potential at a point in free space due to a charge Q coulomb is Q x 10¹¹ v
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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
- The energy released by the fission of one uranium atom is 200 MeV.
- The electric potential at a point in free space due to a charge Q coulomb is Q x 10¹¹ v
- A tuning fork frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second
- A body of mass 2 kg travels according to the law x(t)=pt+qt²+rt³
- A photosensitive metallic surface has work function, hν₀. If photons of energy
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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