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Rate of change in water's temperature due to current.

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Two square metal plates, each 0.1m on a side are parallel to each other and separated by distance 0.01m.
the region between the plates is filled with water with conductivity 0.001 (ohm-meter)^(-1)
If a potential difference is maintained between the plates, find the rate of change of temperature of the water.

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The water's resistance is:
(1.1)
Where is the ...

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