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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
- An LCR circuit contains resistance of 100 ohm and a supply of 200 volt at 300 radian
- An electric dipole of dipole moment p is placed in a uniform external electric field
- In an NPN transistor the collector current is 24 mA. If 80% of the electrons
- In adiabatic expansion, product of PV
- If two charges +4e and +e are at a distance x apart, then at what distance charge q
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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