1 points 1 Previous Answers Walkers 22 P.C83. The astronomical object 4U0142 61
ID: 1875390 • Letter: 1
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1 points 1 Previous Answers Walkers 22 P.C83. The astronomical object 4U0142 61 has the distinction of creating the most powerful magnetic freld ever observed. This pulsars), and its magnetic field is 1.3 x 1015 times greater than the Earth's magnetic field. My (a) Suppose a 3.3 m straight wire carrying a current of 1.2 A is placed in this magnetic fieid at an angle of 75° to the field lines. What force does this wire Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. N (b) A field this strong can significantly change the behavior of an atom. To see this, consider an electron moving with a speed of 1.6 x 10% m/s. Compare the maximum magnetic force exerted on the electron to the electric force a proton exerts on an electron in a hydrogen atom. The radius of the hydrogen atom is 5.29 x 10-11 m. max force on electron force of proton on electron Show My Work (optiona Subrnit Answer Save ProgressPractice Another VersionExplanation / Answer
B = (1.3 x 10^5) B_earth = (1.3 x 10^5)(4 x 10^-5 T)
B = 5.2 T
(A) F = IL X B
|F| = IL B sin(theta)
= (1.2 x 3.3 ) (5.2) sin(75)
= 19.9 N
(B) Fm / Fe = (q v B ) / (k q1 q2 / r^2)
= r^2 v B / k e
= (5.29 x 10^-11)^2 (1.6 x 10^6) (5.2) / (9 x 10^9)(1.6 x 10^-19)
= 1.62 x 10^-5
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