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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 luminous object is seperated from a screen by distance d. A convex lens
- A rod of 10 cm length is moving perpendicular to uniform magntic field of intensity
- A and B are two vectors and θ is the angle between them ,if |A x B|=√3(A.B),the value of θ
- If angular momentum of a body is increased by 200% its kinetic energy will increase
- A bullet comes out of the barrel of gun of length 2m with a speed of 800 m/s
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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