An electric field of 1500 V/m and a magnetic field of 0.40 Wb/`m^(2)` act on a moving electron. The minimum uniform speed along a straight line, the electron could have is

Options

A. `1.6xx10^(15) m//s`
B. `6xx10^(-16) m//s`
C. `3.75xx10^(3) m//s`
D. `3.75xx10^(2) m//s`

Answer

c

Explanation

Here , `E=1500 V//m , B=0.4Wb//m^(2)`
Minimum speed of electron along the straight line, `v=E/B`
`=1500/0.4 =3750=3.75xx10^(3) m//s`