An electron has a mass of 9 x 10-31 kg and charges 1.6 x 10-19 C is moving with a velocity of 106 m/s. enters a region where a magnetic field exists. if it describes a circle of radius 0.10 m, the intensity of the magnetic field must be______
A. 1.8 × 10-4 T
B. 5.6 × 10-5 T
C. 14.4 × 10-5 T
D. 1.3 × 10-6 T
Answer:B
An electron has a mass of 9 x 10-31 kg and charges 1.6 x 10-19 C is moving with a velocity of 106 m/s. enters a region where a magnetic field exists. if it describes a circle of radius 0.10 m, the intensity of the magnetic field must be______
A. 1.8 × 10-4 T B. 5.6 × 10-5 T C. 14.4 × 10-5 T D. 1.3 × 10-6 T