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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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(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Core of electromagnets are made of ferromagnetic material which has
- If the earth shrink such that its mass does not change but radius decreases to one
- The approximate depth of an ocean is 2700 m. The compressibility of water is
- The charge flowing through a resistance R varies with time t as Q=at-bt²,
- When ultraviolet rays are incident on metal plate, then photoelectric effect
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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