| ⇦ | 
| ⇨ |
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,
Related Questions: - Source S₁ is producing, 10¹⁵ photons per second of wavelength 5000Å
- If 20% of a radiactive element decays in 10 days, then amount of original material left
- The wing span of an aeroplane is 20 m. It is flying in a field where the vertical
- The maximum kinetic energy of emitted electrons in a photoelectric effect
- The distance travelled by an object along a straight line in time t is given by
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Source S₁ is producing, 10¹⁵ photons per second of wavelength 5000Å
- If 20% of a radiactive element decays in 10 days, then amount of original material left
- The wing span of an aeroplane is 20 m. It is flying in a field where the vertical
- The maximum kinetic energy of emitted electrons in a photoelectric effect
- The distance travelled by an object along a straight line in time t is given by
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply