A conducting wire, bent in the from of a parabour `y^(2)= 2x` carries a current `i=2 A` as shown in figure . This wire is palned in a unfirm magnetic field `B= - 4hatk` tesla . The magetic force on the wire of the wire is a newton )

Options

A. `16sqrt(2)N-m`
B. `16N-m`
C. `18sqrt(2)N-m`
D. zero

Explanation

Since `vecM||^(r)` to `vecB`
`therefore` torque zero