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The masses of the particles are m1 = 1.50 10-8 kg and m2 = 5.40 10-8 kg. The rad

ID: 2173149 • Letter: T

Question

The masses of the particles are m1 = 1.50 10-8 kg and m2 = 5.40 10-8 kg. The radius of the circular path for particle 1 is r1 = 12 cm.


(c) What is the algebraic expression for the speed v with which a particle enters the field region? Express your answer in terms of the charge magnitude |q|, the electric potential difference V, and the mass m of the particle. (Answer using q, V, and m.)
v =


(d) What is the algebraic expression for the radius r of the circle on which a particle moves perpendicular to the magnetic field? Express your answer in terms of the mass m and speed v of the particle, the magnitude |q| of the charge, and the magnitude B of the field. (Answer using q, m, v, and B.)
r =


(e) What is the algebraic expression for the radius r2 of the circle on which particle 2 moves perpendicular to the magnetic field? Express your answer in terms of the radius r1 of the circle on which particle 1 moves, the mass m1 of particle 1, and the mass m2 of particle 2. (Answer using m_1 for m1, m_2 for m2, and r_1 for r1.)
r2 =


(f) What is the radius r2 of the circle on which particle 2 moves perpendicular to the magnetic field?

Explanation / Answer

a)

energy conservation ==> 0.5 m v^2 = q V

==> v = (2qV/m)

B)

q v B = m v2/r

r = mv/qB

c)

r = mv/qB

r = (m(2qV/m))/qB

r = (2mqV)/qB

r2 = (r1) × ((m2/m1))