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a) Heat produced or absorbed at a junction is proportional to the current by the junction.
b) This effect is produced when current is passed by junction of suitable materials.
c) It is reversible effect.
d) Heat exchange depends upon nature of conductors and temperature of the junctions.
e) It can be heating as well as cooling effect.
In thermodynamics, the Joule-Thomson effect describes a process in which a fluid is forced through a valve or porous plug while kept insulated so that no heat is exchanged with the
note
State Gauss' theorem in electrostatics. Using this theorem, derive the expression for the electric field intensity at any point outside a uniformly charged thin spherical shell.
Joule's laws (J.P. Joule) Joule's first law The heat Q generated while a current I pass through a resistance R for a particular time t is given by following Q = I2 R
why electric field is zero inside a cavity
what is the equation for work
Electrical materials: Materials which allow an electric current to flow easily are known as conductors and those which prevent the flow of an appreciable current are known as i
Gravitational Field inside a Spherical Shell In this problem we prove that the gravitational field inside a thin spherical shell of finitemass is zero. By extension, the field
(i) It has of continuously varying wavelengths in a exact wavelength range. (ii) It is given by solids, liquids and highly compressed gases heated to high temperature. (iii)
Which quantity is unchanged during refraction of light? Describe critical angle. Show an application of total internal reflection.
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