Find the mobility of the conduction electrons in a copper conductor if in Hall effect measuremaents performed in the magnetic fileld of induction `B = 100 mT` the transverse electric field strength of the given conductor turned out be `eta = 3.1.10^(3) `times less than that of the longtudinal electric field.

Explanation

By definiation, modility = `("dirft velocity")/("Electric field compon ents causing this drift")` or `mu = (v)/(E_(L))`
On other hand,
`E_(T) = vB = (E_(L))/(eta)`, as given so, `mu = (1)/(eta B) = 3.2xx10^(-3) m^(2)//(V .s)`