A particle of charge 16×10−16 C moving with velocity 10 ms−1 along x -axis enters a region where magnetic field of induction B is along the y -axis and an electric field of magnitude 104 Vm−1 is along the negative z -axis. If the charged particle continues moving along x -axis, the magnitude of B is :
a. 16×103 Wb m−2
b. 2×103 Wb m−2
c. 1×103 Wb m−2
d. 4×103 Wb m−2