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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 straight conductor of length 0.4 m is moved with a speed of 7 ms⁻¹perpendicular
- A projectile is thrown in the upward direction making an angle of 60°with the horizontal
- Zenor breakdown will occur if
- An artificial satellite is revolving round the earth in a circular orbit. Its velocity
- In Young’s double slit experiment, the ratio of maximum and minimum intensities
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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