To which physical circumstance does the potential above correspond? a) A point c
ID: 1873970 • Letter: T
Question
To which physical circumstance does the potential above correspond? a) A point charge b) A charged conducting sphere c) A uniform spherical shell of charge d) a&b; e) b&c; f) a&c; g) a,b,&c; Describe in words the motion of an electron if it begins at the center of this distribution moving very slowly, incliding what happens when it reaches the edge of the flat potential Describe in words the motion of a proton if it begins at the center of this distribution moving very slowly, including what happens when it reaches the edge of the flat potential this distribution ing what happens when itExplanation / Answer
In case of a charged spherical shell and charged conducting sphere, the potential inside their surface is KQ/R (R=Radius of the sphere/shell), Potential is constant inside.And potential outside is KQ/x (x = Distance from the center of the shell/sphere), the potential decreases hyperbolically with the increasing distance.
Hence answer is option (e)
During the flat portion, the electron will keep moving at the slow constant speed which has been initially imparted to it.No force will act during this phase which can accelerate/decelerate it. But as it reaches the edge, an electric force will act on the electron towards the center and it will move towards the center and as soon it will reach the opposite edge, it will again be redirected to the center. Hence it will keep oscillating in the flat region about the center.
In case of the proton, it will remain at a slow speed in the flat portion like the electron as no force acts on it till now.But at the edge, the electric force will push (accelerate) the proton away from the sphere/shell.
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