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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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(96)
Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The force of repulsion between two electrons at a certain distance is F.
- A particle of mass 1.96×10⁻¹⁵ kg is kept in equilibrium between two horizontal metal
- A parallel plate capacitor with air between the plates has a capacitance of 9 pF.
- A comb run through one’s dry hair attracts small bits of paper. This is due to
- Two forces of magnitude 8N and 15N respectively act at a point so as to make the resultant force
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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