Question

Clearly state your solution path. Partial credit will only be given for clear steps. Units must be provided or points will be subtracted. Clearly label the end result, use double lines to underscore or box the final result. Note the equation sheet is on the back. (10 pt) An electron enters a region between two capacitor plates with equal and opposite charges. The plates are L=0.1 m by 0.05 m and the gap between the plates is h=0.001 m. During a short time interval of At=0.001 s, while between the plates and far from the edges, the change of momentum is Ap=0,-7x10-17,0kg m/s. Ignore gravitational effects since they are so weak compared to electric effects. (a) What is the electric field vector between the plates (it is not shown on the figure)? (hint: momentum principle) 6) What is the charge (magnitude and sign) on the upper plate? (c) What is the potential difference AV = Voop - Vbottom? (10 pt) In the circuit depicted in the figure, emf = 8 V, R. -1022, R3512 and R3 = 152. (a) Find the total current supplied by the battery. (6) Determine the voltage drop across Ri. (c) Determine the voltage drop across R. (3 pt) In the previous problem if a compass was placed 5mm above the circuit as indicated in the diagram calculate the approximate angle the needle deflects away from North. Note that Bort=2x10-5 Tesla. 8.50 x 11.00 in >

Answer 1

a) Since we know F = A and FEZE forony l) and qe that - —" - 7x10-15 AP 20+ 166x10-13 x 0. Odi E =- 4.37510 kwa 3.) we know that electric field beheen two folate 7 = TE DE q= Efdle) = 4.37.5 voºx (0.05 XD-148-85x10-12) 12 = 19.35x10-9c7 [2 = 19.35 ne upper plate a) potem tred difference will be AVE - ER=-6-4.375X105X0.001) = (437.5 Volt charge is the on Plr ask multiple question partoise