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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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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If threshold wevelength for sodium is 6800 Å, the work function will be
- In a vaccum triode the function of grid voltage is
- According to Hook’s law, force is proportional to
- In a capillary tube water raises by 1.2 mm. The height of water that will rise
- A thermocouple is made from two metals, antimony and bismuth. If one junction
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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