Why tea kettle sing
What is the reason that the tea kettle sing? Briefly state the reason.
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There is a very small attachment with a hole in it that acts as the whistle. This is inserted to the spout of the kettle and whenever the water begins to boil, the steam produces a sound as it gets away.
Explain Kirchhoff's rules or Kirchhoff's Loop rule and Point rule? Kirchhoff's rules (G.R. Kirchhoff) <
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What do you mean by communication? Illustrate in brief.
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What do you mean by the term information in physics?
Explain Faradays laws of electrolysis or describe Faradays first law and Faradays second law? Faraday's laws of electrolysis (M. Faraday):
Biot-Savart law (J.B. Biot, F. Savart) - The law which explains the contributions to the magnetic field by an electric current. This is analogous to the Coulomb's law. Mathematically: dB = (mu0 I)/(4 pi r2) dl cross e
Heat pumps move heat from one place to another. They work similar to refrigeration. The movement of heat takes energy, either electrical energy as in the use of vapor compression heat pumps or thermal energy as in the use of absorption heat pump
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