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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 L-C-R circuit with L=1.00 mH, C=10μF and R=50Ω, is driven with 5 V AC voltage.
- A spherical drop of capacitance 1μF is broken into eight drops of equal radius.
- The depth at which the effective value of acceleration due to gravity is g/4
- Copper and carbon wires are connected in series and the combined resistor is kept
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A L-C-R circuit with L=1.00 mH, C=10μF and R=50Ω, is driven with 5 V AC voltage.
- A spherical drop of capacitance 1μF is broken into eight drops of equal radius.
- The depth at which the effective value of acceleration due to gravity is g/4
- Copper and carbon wires are connected in series and the combined resistor is kept
- A body of mass m=3.513 kg is moving along the x-axis with a speed of 5 m/s
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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