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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 scooter is going round a circular road of radius 100 m at a speed of 10m/s
- Two point charge +9e and +e are at 16 cm away from each other.
- An open pipe resonates with a tuning fork of frequency 500 Hz. It is observed
- A battery charges a parallel plate capacitor seperated by distance(d) so that the energy
- The horizontal and vertical components of earth’s magnetic field at a place
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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