Problem 29.3 5 of 14 B-4.10 A proton moves along the r-axis with u, = 1.0× 10 m/

Question

Problem 29.3 5 of 14 B-4.10 A proton moves along the r-axis with u, = 1.0× 10 m/s Submit Previous Answers Request Answer X Incorrect, Try Again Part C As it passes the origin, what are the strength and direction of the magnetic field at the (0 cm, -2 cm 0 cm) position? Give your answer using unit vectors Express your answer in terms of the unit vectors i, j, and k. Use the 'unit vector button to denote unit vectors in your answer 16 B- 4 10 Submit Previous Answers Request Answer X Incorrect; Try Again Provide Feedback Next >

Explanation / Answer

a)

The equation to determine the value of magnetic field,

B = uo*q*v*sin(theta) / 4pi*r^2

B = (4pi x 10^-7 x 1.6 x 10^-19 x 1 x 10^7 x sin(0)) / (4pi x (1 x 10^-2)^2)

B = 0

b)

B = (4pi x 10^-7 x 1.6 x 10^-19 x 1 x 10^7 x sin(90)) / (4pi x (1 x 10^-2)^2)

B = 1.6 x 10^-15 T

c)

B = (4pi x 10^-7 x 1.6 x 10^-19 x 1 x 10^7 x sin(-90)) / (4pi x (2 x 10^-2)^2)

B = - 0.4 x 10^-15 T

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