TA: Tomoyuki Nakayama Thursday, June 17, 2010 PHY 2048: Physic 2, Discussion Section 8701 Quiz 4 (Homework Sets #6 & #7) Name: UFID: Formula sheets are not allowed. Calculators are allowed. Do not store equations in your calculator. You need to show all of your work for full credit. ________________________________________________________________________________ In the figure below right, a proton accelerated from rest through potential difference V 1 = 10.0 kV enters the gap between two parallel plates having separation d = 20.0 mm and potential difference V 2 = 500 V. The lower plate is at the higher potential. A uniform magnetic field is also applied to the gap. Neglect fringing and assume that both the electric field and magnetic field are perpendicular to the velocity of the electron between the plates. a) What is the speed of the proton as it enters the gap between the plates? Electric force is a conservative force. Therefore, the mechanical energy of the proton is conserved while it
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