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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: - The identical cells connected in series are needed to heat a wire of length one meter
- A bullet of mass 0.05 kg moving with a speed of 80 m/s enters a wooden
- A spherical drop of mercury having a potential of 2.5 v is obtained as a result
- If the velocity of sound in air is 350 m/s, thent he fundamental frequency
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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 identical cells connected in series are needed to heat a wire of length one meter
- A bullet of mass 0.05 kg moving with a speed of 80 m/s enters a wooden
- A spherical drop of mercury having a potential of 2.5 v is obtained as a result
- If the velocity of sound in air is 350 m/s, thent he fundamental frequency
- If potential(in volts) in a region is expressed as V(x,y,z) = 6xy – y + 2yz,
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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