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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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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Sound production from tape recorder makes use of
- Two thin lenses of focal lengths f₁ and f₂ are in contact and coaxial.
- A body of mass M hits normally a rigid wall with velocity V and bounces back
- If t₁ ̷ ₂ is the half-life of a substance, then t₃ ̷ ₄ is the time in which
- A uniform electric field and uniform magnetic field are acting along the same
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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