magnetic field of magnitude 3.03 x 10* T in the positive z-direction. Find the magnitude and direction of the magnetic force on a proton. Find the magnitude and direction of the magnetic force on an electron. HINT (a) magnitude of the magnetic force on a proton (in N) (b) direction of the magnetic force on a proton O +x-direction O -x-direction O +y-direction O -y-direction O +z-direction O -z-direction (c) magnitude of the magnetic force on an electron (in N) N (d) direction of the magnetic force on an electron O +x-direction O -x-direction O +y-direction O -y-direction O +z-direction O -z-direction