Wiedemann and Franz Law

This law is generally related to the conductivity.
According to this law Ratio of thermal conductivity and electrical conductivity is the same for all metals at the same temperature and this ratio is directly proportional to absolute temperature.

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Pitot tube

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Types of Flow

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Centrifugal pump construction and working.

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Centrifugal pump consist of the following parts 1)Inlet and outlet pipe 2)Casing 3)Impeller 4) Vanes. Working principle of Centrifugal pump:  Centrifugal pump creates an increase in pressure by transfer of mechanical energy from the electrical motor to the fluid through the rotating impeller. Inlet and outlet pipe.- One end of the inlet pipe is dipped in to the fluid fitted with a strainar and other end is connected to the casing. Similaraly one end of oulet pipe connected to casing and other to the discharge tub. Casing: Casing is the outermost part of the centrifugal pump. cross sectional area of the pump is goes on increasing along the sdischarge side.casing is generally made up of a stell or cast iron. Impeller- Impeller is the rotating part of the pump.which have vanes for pushing fluids in the casing.sometimes there will be guide vanes are also provided to guide the flow.Impeller is situated in the casing. Working: Suction pipe suck the water fro
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