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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
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Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The value of n so that vectors 2i+3j-2k, 5i+nj+k and -i+2j+3k may be coplanar,will be
- The wavelength λₑ of an electron and λₚ of a photon are of same energy E are related by
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- In an interference experiment, third bright fringe is obtained at a point
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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