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    Relationship between Resistance and Temperature

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    Please help with the following thermodynamics problem.

    The current, passing through an incandescent light bulb, becomes lower than the initial value, some moments later after it is switched on. Why?
    a) Change in drift velocity
    b) Change in Electrostatic Potential (Potential drop across the conductor)
    c) Change in Resistance
    d) Change in Conductance
    Give arguments in support of your answer. Also, explain the full phenomenon lying behind it.

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    Solution Preview

    Problem: The current, passing through an incandescent light bulb, becomes lower than the initial value, some moments later after it is switched on. Why?

    Solution:
    The resistivity of a conductor increases with Temperature. An ideal electrical conductor (here, a filament of the electric bulb) has a positive temperature ...

    Solution Summary

    This solution helps with a thermodynamics problem involving light bulbs. The answer includes a detailed explanation of the given problem and provides students with a clear perspective of the underlying concepts.

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