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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.
Related Questions: - A person cannot see the objects clearly placed at a distance more than 40 cm
- what should be the velocity of an electron so that its momentum becomes equal
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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
- A person cannot see the objects clearly placed at a distance more than 40 cm
- what should be the velocity of an electron so that its momentum becomes equal
- An A.C source is rated at 220 V, 50 Hz. The time taken for voltage to change
- In which case positive work has to be done in seperating them?
- If the minimum energy of photons needed to produce photoelectrons is 3 eV,
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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