Question

Protons move clockwise around a circular path of radius 27 cm in a magnetic field of magnitude B = 0.25 T. Proton has a charge 1.6 x 10^-19 C. What is the magnitude of the momentum of the protons and which direction is the magnetic field pointing?

Protons move clockwise around a circular path of radius 27 cm in a magnetic field of magnitude B = 0.25 T. Proton has a charge 1.6 x 10^-19 C. What is the magnitude of the momentum of the protons and which direction is the magnetic field pointing? 1.1 x 10^-20 kg-m/s, into the plane of the circle 0.54 x 10^-20 kg-m/s, out of the plane of the circle 1.1 x 10^-20 kg-m/s, out of the plane of the circle none of these 0.54 x 10^-20 kg-m/s, into the plane of the circle

Answer 1

Radius of charge particle in magnetic field -

R = P/qB

P = momentum

q = charge

B = magnetic field

P = RqB = 0.27x1.6x10^-19x0.25

Momentum (P) = 1.1x10^-20 kg-m/s

Out of the plane of circle