Physics

Problem

(i) Starting from the relations

I = n e A v_d

and

v_d = \mu E

, derive a formula linking the electric field

E

inside a conductor with the current density

J

. (ii) Hence, identify the physical quantity represented by the slope of an

E

versus

J

graph for the conductor. a. Starting from the relations

I = n e A v_d

and

v_d = \mu E

, derive a formula linking the electric field

E

inside a conductor with the current density

J

. b. Hence, identify the physical quantity represented by the slope of an

E

versus

J

graph for the conductor.