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  4. In the meter bridge shown, the resistance X has a negative temperature coefficient of resistance. Neglecting the variation in other resistors, when current is passed for some time, in the cirucit, b̧lance point should shift towards.

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Q. In the meter bridge shown, the resistance $X$ has a negative temperature coefficient of resistance. Neglecting the variation in other resistors, when current is passed for some time, in the cirucit, b̧lance point should shift towards.Physics Question Image

Current Electricity

Solution:

When current is passed, temperature increases, so resistance decreases thus, balance point shift towards