Consider a parallel plate capacitor whose plates have a charge density n. An anti-proton (a particle with the same mass as a proton, but opposite charge) starting at the positiveplate is shot at a velocity of vo= 30, 000 m/s towards the negative plate.1. What is the minimum electric field strength needed between the plates if the proton is not to hit the top plate?2. Describe the anti-proton's trajectory.12°Vo45°2.0 cm++++

Answered: nimum electric field strength ne

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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Minimum electric field strength

To calculate the minimum electric field strength needed between the plates, we can use the following equation:

F_e = qE

where:

F_e is the electric force on the anti-proton
q is the charge of the anti-proton
E is the electric field strength

Since the anti-proton has a negative charge, the electric force will be in the opposite direction of the electric field. Therefore, in order to prevent the anti-proton from hitting the top plate, the electric force must be equal to the weight of the anti-proton.

F_e = mg

where:

m is the mass of the anti-proton
g is the acceleration due to gravity

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