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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 10¹⁹elecrons are removed from a neutral metal plate through some process,
- When an object is placed 40cm from a diverging lens, its virtual image is formed 20 cm
- Two lines of force due to a bar magnet
- The maximum kinetic energy of the photoelectrons depends only on
- A parallel plate capacitor of a capacitance 1 pF has seperation between the plates
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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