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A filament bulb (500W,100V) is to be used in a 230V main supply. When a resistance R is connected in series, it works perfectly and the bulb consumes 500w. The value of R is
Options
(a) 230Ω
(b) 46Ω
(c) 26Ω
(d) 13Ω
Correct Answer:
26Ω
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle moving in a straight line with uniform acceleration is observed
- Water rises in a vertical capillary tube up to a height of 2.0 cm.
- When a metallic surface is illuminated with radiation of wavelength λ,
- A spring when stretched by 2mm containing energy 4 J. If it is stretched
- Monochromatic light of wavelength 667 nm is produced by a helium neon laser
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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