Casual Physicist

Casual Physicist :

Ohms Law :

Ohm’s law states that at a constant temperature, the steady current flowing through a conduction is directly proportional to the potential difference between the two ends of the conductor.

V = IR

 

Drift Velocity :

Drift Velocity is defined as a velocity with which free electrons get drifted towards the positive terminal, when an electric field is applied

 

The Term Mobility of Charges :

 Mobility is defined as a drift velocity acquired per unit electric field.


Three applications of super conductors :

(1) Super conductor forms the basis of energy saving power system, namely the super conducting generators, which are smaller in size and weight in comparison with conventional generators.

(2) Super conducting magnetic propulsion systems may be used to launch satellites into orbits directly from the earth without the use of rockets.

(3) Superconductors can be used as memory or storage elements in computers.

 

Temperature coefficient of resistance :

The temperature coefficient of resistance is defined as the ratio of increase in resistance per degree rise in temperature to its resistance at 0 deg C.

 

 

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