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Q. Give any two differences among Peltier effect and Joule's law of heating.
Joule's law of heating
Peltier effect
Takes place all through the conductor.
Occurs at the junctions.
Heat produced is proportional to the square of the current.
Heat produced or else absorbed is proportional to the current.
Irreversible process.
Reversible process
"At base temperature the volume of a gas differs inversely with pressure". If P and V are volume and pressure of a gas at a given temperature then
is there relation between emf and size os cell?
For the arrangement shown in Figure find (a) the equivalent capacitance of the circuit, (b) the voltage across QR, and (c) the charge on each capacitor
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6.1 moles of steam at 100 o C are condensed at 100 o C and the resulting water is cooled to 47.1 o C. Calculate the entropy change for this process. (The molar heat capac
The helicopter view in fig. p3.29
9 kg of mercury is powred into a a glass u tube of uniforminternal diameter of 1.2 cm it oscilates freqently about its equilibrium pojistion claculate the time period
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refractive index of the transparent liquids using prism and spectrometer
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