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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
- Magnetic susceptibility of a material is given as
- A 2 kg mass starts from rest on an inclined smooth surface with inclination
- In the Young’s modulus experiment, if length of wire and radius both are doubled,
- The internal energy change in a system that has absorbed 2 kcals of heat
- A particle moves in xy plane according to the equation x = 4t² + 5t + 16 and y = 5t
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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