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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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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When a piece of metal is illuminated by a monochromatic light of wavelength λ,
- A cockroach is moving with a velocity v in anticlockwise direction on the rim
- In a franhofer diffraction experiment at a single slit using a light of wavelength
- A super conductor exhibits perfect
- In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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