46. As shown in the figure, a small part..-阿摩線上測驗
46. As shown in the figure, a small particle of charge q= -7.0 x10-6 C
and mass m=3.1 x10-12 kg has velocity v=9.4 x103 m/s as it enters a
region of uniform magnetic field. The particle is observed to travel
in the semicircular path shown, with radius R = 5.0 cm. Calculate
the magnitude of the magnetic field in the region.
(A) 0.26T
(B) 0.20T
(C) 0.14T
(D) 0.08T
(E) 0.02T
46. As shown in the figure, a small part..-阿摩線上測驗
This is a large modal.