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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
- Four point masses, each of value m, are placed at the corners of a square ABCD
- Charge q is uniformly spread on a thin ring of radius R. The ring rotates
- A train is moving along a straight path with uniform acceleration
- What is the Q-value of the reaction? ¹H+⁷Li→⁴He+⁴He
- A wire in the form of a circular loop of one turn, carrying a current, produces
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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