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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,
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle moves a distance x in time t according to equation x = (t + 5)⁻¹
- Find the fundamental frequency of a closed pipe if the length of air column is 42m.
- The work done in rotating a magnetic of magnetic moment 2 A-m² in
- A spherical shell of radius 10cm is carrying a charge q. If the electric potential
- Application of a forward bias to a P-N junction
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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