`3 A` of current is flowing in a linear conductor having a length of `40 cm`. The conductor is placed in a magnetic field of strength 500 gauss and makes an angle of `30^(@)` with the direction of the field. It experiences a force of magnitude
A. `3xx10^(4)` newton
B. `3xx10^(2)` newton
C. `3xx10^(-2)` newton
D. `3xx10^(-4)` newton
