Suppose you walk into a room with a strong magnetic field, and you want to find out which direction it points and how strong it is. You take a little electron gun (you can imagine the glowing tube I used in the lecture demo), and you start pointing it in all different directions and look at how the beam bends, trying to find which direction of electron travel gives the largest magnitude magnetic force on the electrons. You find that shooting the electrons to the West gives the greatest deflection force, and that force bends the beam straight upward. a) Which direction does the magnetic field point? (I will read your answer to this question from the PDF of your work you submit) b) If the speed of the electrons was 1.1 x 106 m/s, and you calculate from the deflection of the beam that they are experiencing a magnetic force of 6.4 x 10-14 Newtons, what is the magnitude of the magnetic field? Give your answer in Tesla, with 3 sig figs, and don't type units into the box: Calculate the answer in Tesla. For scientific notation, use the 'e' notation. For example, Avogadro's number (6.022 x 1023) would be written "6.022e23" ; The charge on an electron (-1.60 x 10-19) would be written "1.60e-19" (it's in Coulombs).
Suppose you walk into a room with a strong magnetic field, and you want to find out which direction it points and how strong it is.
You take a little electron gun (you can imagine the glowing tube I used in the lecture demo), and you start pointing it in all different directions and look at how the beam bends, trying to find which direction of electron travel gives the largest magnitude magnetic force on the electrons.
You find that shooting the electrons to the West gives the greatest deflection force, and that force bends the beam straight upward.
a) Which direction does the magnetic field point? (I will read your answer to this question from the PDF of your work you submit)
b) If the speed of the electrons was 1.1 x 106 m/s, and you calculate from the deflection of the beam that they are experiencing a magnetic force of 6.4 x 10-14 Newtons, what is the magnitude of the magnetic field?
Give your answer in Tesla, with 3 sig figs, and don't type units into the box: Calculate the answer in Tesla.
For scientific notation, use the 'e' notation. For example,
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