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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
- The body of mass m hangs at one end of a string of length l, the other end of which
- A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest
- Two point white dots are 1 mm apart on a black paper.
- The range of voltmeter is 10V and its internal resistance is 50Ω.
- When a mass m is attached to a spring, it normally extends by 0.2 m.
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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