A charged particle with velocity `vec V = x hati + y hatj` moves in a magnetic field `vec B = y hati + x hatj` The magnitude of magnetic force acting on the particle id F, which one of the following statements(s) is`//`are correct ?
a) no force will act on particle if x=y
b) `F alpha (x^2 - y^2)` if `x gt y`
c) the force will act along z - axis if `x gt y`
d) the force will act along y - axis if `y gt x`

Options

A. a,b,c,d are true
B. a,b,c are true
C. only a,b are true
D. d is true

Answer

B