An experiment to verify ohm's law, a conductor of resistance R is taken. During the experiment, temperature of the conductor increases with the flow of current. Resistance of the conductor will

Remains same

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Decrease

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Increase

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First increases then decreases

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Solution

The correct option is C Increase
Resistance of conductor $R_{T} = R_{o} (1 + α Δ T)$ where $α > 0$
Thus resistance of the conductor increases with increase in temperature.

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(b)

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Q. When the resistance of the conductor increases, then the current will __________.

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An experiment to verify ohm's law, a conductor of resistance R is taken. During the experiment, temperature of the conductor increases with the flow of current. Resistance of the conductor will

The correct option is C IncreaseResistance of conductor RT=Ro(1+αΔT) where α>0Thus resistance of the conductor increases with increase in temperature.

The correct option is C Increase
Resistance of conductor $R_{T} = R_{o} (1 + α Δ T)$ where $α > 0$
Thus resistance of the conductor increases with increase in temperature.