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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,
Related Questions: - A charged particle with a velocity 2×10³ ms⁻¹ passes undeflected through electric field
- An alternating voltage e=200s in100t is applied to a series combination
- A thin wire of resistance 4 ohm is bent to form a circle. The resistance across
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A charged particle with a velocity 2×10³ ms⁻¹ passes undeflected through electric field
- An alternating voltage e=200s in100t is applied to a series combination
- A thin wire of resistance 4 ohm is bent to form a circle. The resistance across
- A radiation of energy ‘E’ falls normally on a perfectly reflecting surface
- An atom bomb weighing 1 kg explodes releasing 9×10¹³ J of energy.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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