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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 drum of radius R and mass M, rolls down without slipping along an inclined plane
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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 drum of radius R and mass M, rolls down without slipping along an inclined plane
- Which of the following is not a thermodynamical coordinate?
- The inductive reactance of an inductor of 1/π henry at 50 Hz frequency is
- If in a L-R series circuit the power factor is 1/2 and R=100Ω, then the value of L is,
- The frequency of an alternating voltage is 50 cycles per second and its amplitude
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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