question_answer

                A metal sample carrying a current along X-axis with density \[{{J}_{x}}\]is subjected to a magnetic filed\[{{\operatorname{B}}_{z}}\](along-z axis). The electric field \[{{\operatorname{E}}_{y}}\]developed along Y-axis is directly proportional to \[{{\operatorname{J}}_{x}}\]as well as \[{{B}_{z}}\]. The constant of proportionality as has SI unit.     JEE Main Online Paper ( Held On 25  April 2013 )

A)                 \[\frac{{{m}^{2}}}{A}\]                                 

B)                                        \[\frac{{{m}^{3}}}{A\operatorname{s}}\]

C)                                        \[\frac{{{m}^{2}}}{A\operatorname{s}}\]                                            

D)                                        \[\frac{{{\operatorname{A}}_{\operatorname{S}}}}{{{\operatorname{m}}^{3}}}\]