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The resistance of a bulb filament is 100 Ω at a temperature of 100⁰C. If its temperature coefficient of resistance be 0.005 per ⁰C, its resistance will become 200Ω at a temperature of
Options
(a) 200⁰C
(b) 300⁰C
(c) 400⁰C
(d) 500⁰C
Correct Answer:
400⁰C
Explanation:
Let Ro be the resistance of bulb filament at at 0°C,
Related Questions: - Which of the following statements is correct?
- Two thin lenses of focal lengths f₁ and f₂ are in contact and coaxial.
- The horizontal range and maximum height attained by a projectile are R and H,respectively
- When a metallic surface is illuminated with radiation of wavelength λ,
- The surface temperature of the sun which has maximum energy
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following statements is correct?
- Two thin lenses of focal lengths f₁ and f₂ are in contact and coaxial.
- The horizontal range and maximum height attained by a projectile are R and H,respectively
- When a metallic surface is illuminated with radiation of wavelength λ,
- The surface temperature of the sun which has maximum energy
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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