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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
Find the carrier distribution function in the impurity level that accounts for the spin degeneracy of the impurity states.
working project related to logic gates
Explain Brewster's experiment and describe how Brewster's law was formulated.
the sun warming the earth is an example of?
A box is initially at rest on a horizontal, frictionless table. If a force of 10 Newtons acts on the box for 3 seconds, what is the momentum of the box at the end of the 3 second i
Q. The block of mass M descend with acceleration a and mass of string is m. find tension in string? Ans: The tension in the string will not be same at all points as the string h
1. A given radioactive sample emits only one type of radiation. When placed in a counter for 10 minutes, 1632 counts are registered. Then the sample is removed and a background
Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wave-fronts in front of the source com
P-N junction is (A) A rectifier. (B) An amplifier. (C) An Oscillator. (D) A Coupler. Ans: P-N junction is a rectifier.
A laser beam from 200 watt source is focused on an area of 10 -8 m 2 . Determine the magnitude of the Pointing vector of the area.
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