Q. Give any two differences among Peltier effect and Joule's law of heating.
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Joule's law of heating
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Peltier effect
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Takes place all through the conductor.
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Occurs at the junctions.
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Heat produced is proportional to the square of the current.
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Heat produced or else absorbed is proportional to the current.
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Irreversible process.
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Reversible process
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