A long straight wire AB carries a current of . P is a proton travelling with a velocity of …

A long straight wire AB carries a current of $5\text{ A}$. P is a proton travelling with a velocity of $2 \times 10^6\text{ m/s}$, parallel to the wire, $0\cdot2\text{ m}$ from it and in a direction opposite to the current, as shown in Figure 2 below. Calculate the force which magnetic field of the current carrying conductor AB exerts on the proton.