Silsbee rule and other properties in superconductors

Silsbee rule: An important result of the existence of critical magnetic field is that there is also critical strength of current Ic flowing in the superconductor. Exceeding this limit also causes the disturbance of superconductivity. To derive the relation between critical current field consider a superconductor wire of radius r carrying a current I. This current will produce a magnetic field given by:

H=I/2 π r                                  (Using Ampere’s Circuital law) Continue reading “Silsbee rule and other properties in superconductors”

Common daily life science queries – 4

Q:- If a person with a load jumps from a higher building then do you know what will be the load experienced by him?

Ans:- If you know the concept of acceleration of the gravity, then the to understand the reason will be easier for you.

The answer to the query is Zero, because the acceleration of his fall is equal to the acceleration due to the gravity of the earth.

Q:- Why is standing in double decker buses or boats not allowed, particularly in the upper floor of buses? Continue reading “Common daily life science queries – 4”