Multiple-Choice Homework Problem 11.1 The loop in the figure to the right carrie
ID: 1349149 • Letter: M
Question
Multiple-Choice Homework Problem 11.1 The loop in the figure to the right carries a current I in the direction drawn. How is the magnetic field at point A related to the magnetic field at point B? The magnetic field at A is stronger than the magnetic field at B. The magnetic field at A is weaker than the magnetic field at B. The magnetic field at A is the same strength as the magnetic field at B. Multiple-Choice Homework Problem 11.2 An electron is accelerated to very near the speed of light (v = 3 Times 10^8 m/s) in a particle accelerator. It travels down the center of a "beam pipe" (as shown to the right) with radius 2.5cm. What is the magnetic field (magnitude and direction, naturally) produced by the electron at the point P at the edge of the beam pipe at the same cross-section as the electron?
Explanation / Answer
11.1 a)
bacaue B is inversly proportinal to the loop.
11.2) a) B = 7.7*10^-7 T into the page
B = (mue/(4*pi)*(q*v/r^2)
= (4*pi*10^-7/(4*pi))*(1.6*10^-19*3*10^8/0.025^2)
= 7.7*10^-15 T
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