An electric field of 1500 Vm-1 and a magnetic field of 0.40 Wbm-2 act on a moving electron. The minimum uniform speed along a straight line the electron could have is

1.6 × 1015 ms−1 6 × 1016 ms−1 3.75 × 103 ms−1 3.75 × 102 ms−1

3.75 × 103 ms−1

Here, E = 1500 Vm-1. B = 0.4 Wbm-2 Minimum speed of electron along the straight line $v = \frac{E}{B} = \frac{1500}{0.4} = 3750$ $ = 3.75× 10^3 ms^{-1}$