Question

A proton and an electron are released from rest at the midpoint between the plates of...

A proton and an electron are released from rest at the midpoint between the plates of a charged parallel plate capacitor. Except for these particles, nothing else is between the plates. Ignore the attraction between the proton and the electron, and decide which particle strikes a capacitor plate first. Choose from below:

a. proton

b. electron

c. they strike the plate at the same time  

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Answer #1

This question is based on following concepts

1. concept of electric potential energy

2. concept of conservation of energy

3. Idea of mass of electrons and protons

the detailed solution is described below

Snce beth faricles are feleased fom est their iniiol kinehc energies ase Ze Tha boh have electrical fstenhal enet As thi nsle hward the plates,co-the- fot entid ene 0 particle where (EPE),= initial electic fotentiok ener9y Fiad ee f each Pacticle ib pashicle 3ince mass elect is smaller than hill be geater Ane ort on (b) Electron TrnKJ 11

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