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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityMicroscopicEasy2 minQB

PhysicsEasysingle choice

The resistance of a bulb filament is $100Ω$ at a temperature of $10 0^{\circ} C$ . If its temperature coefficient of resistance be $0.005$ per $^{\circ} C$ , its resistance will become $200Ω$ at a temperature of

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Solution:

$200 = 100 [1 + (0.005 \times Δ t)]$ $T - 100 = 200$ $T = 30 0^{\circ} C$

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Microscopic

⏱ 2mℹ️ Source: QB

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