257-MP10 Intro rev 1

257-MP10 Intro rev 1 - MP10: e/m for electrons, Electric...

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MP10: e/m for electrons, Electric and Magnetic forces this lab we will complete the following tasks: In this lab we will complete the following tasks: - Study the magnetic force on electrons - Determine the charge/mass (e/m) ratio for electrons - Study the electric force on electrons - Measure the deflection of an electron beam due to e electric force the electric force (page 1)
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Do not attempt to re-wire the high voltage portion of the apparatus. The high voltage wiring was checked by your TA prior to you coming to lab. The only wires you should be changing are the low voltage cables that are connected to the Helmholtz coils
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A beam of electrons with velocity is generated inside an evacuated tube v Magnetic force y shown in the figure. The electrons start at rest at point C and are accelerated towards point A by a voltage A V . P (x,y) x y applied betwen p CA oints A and C. The electron velocity is given by: v C A B 2 CA eV v m = the presence of a uniform magnetic fi d applied perpendicular to the elect ns v G G + V CA
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257-MP10 Intro rev 1 - MP10: e/m for electrons, Electric...

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