The distance between the plates is 16.8 cm, and the voltage difference is 130 kV. A uniform magnetic field of flux density B field acts parallel to these plates in the z direction. There are two parallel plates acting as a capacitor, arranged in the y-z plane, one at 0 volts and one at +V volts. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. 4 × 1 0 3 k ^ N C − 1 and B = 8 × 1 0 − 2 j ^ W b m − 2, the direction of motion of the particles is At speeds higher than > 1/10c (10% speed of light), we have to use relativity for accuracy. physics. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. The separation between the plates is l. The velocity of the electron at the moment it reaches the opposite plate will be : A . We and our partners will store and/or access information on your device through the use of cookies and similar technologies, to display personalised ads and content, for ad and content measurement, audience insights and product development. Find out more about how we use your information in our Privacy Policy and Cookie Policy. Determine the final velocity β of the electron using classical mechanics. Determine the final velocity β of the electron using classical mechanics. | Yahoo Answers. The electron leaves the negative plate with a negligible initial velocity and then after the acceleration it hits the positive plate with a final velocity β. Your IP: 37.187.171.105 if E = − 1 0 2. An accelerating voltage varying as V = at, where a is a constant is applied between the plates. • Yahoo is part of Verizon Media. This gives K f = 1/2 mv 2 = q ΔV so: v = [ 2qΔV /m ] 1/2. Another way to prevent getting this page in the future is to use Privacy Pass. This problem has been solved! To enable Verizon Media and our partners to process your personal data select 'I agree', or select 'Manage settings' for more information and to manage your choices. How many newtons of force push on your head at sea level? Cloudflare Ray ID: 5f88ba92bd34d6f1 Performance & security by Cloudflare, Please complete the security check to access. An electron is emitted from the surface of the 0 volt plate, with negligible velocity. Join Yahoo Answers and get 100 points today. v= velocity = β, V=voltage diff, KE = kinetic energy, Y = gamma, m = mass, and q = charge, v = sqrt(-2qV/m) use this equation and solve for v. It is derived from the fact that KE = Vq, so, v = sqrt[-2(-1.6x10^-19)(130000)/ (9.11x10^-31 )] = 2.14x10^8 m/s = .712c = β. Trump says he'll leave White House on one condition, Pat Sajak apologizes for outburst on 'Wheel of Fortune', Amazon workers plan Black Friday strikes and protests, Seymour, 69, clarifies remark on being able to play 25, Nail salons, a lifeline for immigrants, begin shuttering, Couple wed 76 years spend final hours in COVID-19 unit, Walmart's massive Black Friday sale just went live, Infamous QB bust Manziel comes clean on NFL failures, Manufacturing error clouds vaccine study results, Sick mink appear to rise from the dead in Denmark, Top Trump official issues stark COVID-19 warning. . 6 × 1 0 − 1 9 C travelling with a velocity 1. The figure shows an electron entering a parallel-plate capacitor with a speed of 5.45×106m/s . An electron is accelerated inside a parallel plate capacitor. Still have questions? Electron entering a parallel-plate capacitor? An electron is accelerated inside a parallel plate capacitor. The distance between the plates is 16.8 cm, and the voltage difference is 130 kV. An electron is launched at a 45? U i + K i + W nc = U f + K f. There are no non-conservative forces acting, the initial kinetic energy is zero, and we can define the plate where the charge exits the capacitor as the zero of potential energy (i.e., U f = 0). equation of motion in y-direction. … What is the final velocity β of the electron if you use relativistic mechanics? The electron leaves the negative plate with a negligible initial velocity and then after the acceleration it hits the positive plate with a final velocity β.