solid state
A thin straight copper wire of length 2 m is cooled to 100 K. At this temperature the electrical conductivity is 2.87 x 10^8 ohm^1 m^1, and the hall coefficient is 5.5 x 10^11 m^3 C^1. A voltage diﬀerence of 30 mV is applied between the ends of the wire, and a magnetic ﬁeld of 0.2 T is applied perpendicular to the wire. assuming the drude model,calculate
the number density of charge carriers (use the Hall coeﬃcient)
the mean time between electronion collisions
the carrier drift velocity
the Hall ﬁeld
can anyone help me with these questions please
thanks
