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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
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A photon of wavelength 300nm interacts with a stationary hydrogen atom in ground
- If the binding energy of the electron in a hydrogen atom is 13.6 eV, the energy
- The rest mass of a body is m1. It moves with a velocity of 0.6c, then its relativistic
- The length of second pendulum is 1 m on earth. If mass and diameter
- In a Rutherford scattering experiment when a projectile of charge Z₁ and mass M₁
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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