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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
- The escape velocity from the earth is Ve. The escape velocity from a planet
- An alternating voltage given as, V=100√2 sin100t V is applied to a capacitor
- If the series limit of Lyman series for hydrogen atom is equal to the series limit
- If the density of earth is doubled keeping its radius constant then acceleration
- A magnetic needle suspended parallel to a magnetic field requires √3J of work
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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