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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
- A current I ampere flows along the inner conductor of a co-axial cable and returns
- An electron of a stationary hydrogen atom passes from the fifth energy level to
- A coil of self-inductance L is connected in series with a bulb B and an AC source
- When the length of the vibrating segment of a sonometer wire is increased by
- A body, which emits radiations of all possible wavelengths, is known as
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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