A proton is in a region with a constant electric field. Is it possible to move t

Question

A proton is in a region with a constant electric field. Is it possible to move the proton in such a way that its electric potential energy doesn't change? Explain. Suppose an insulator is placed in a region of constant electric field. Is the ne e ec inside the insulator larger, smaller, or the same as the applied field? Explain why is Feel free to include a picture. A solid, neutrally charged metal sphere of radius 5 cm is placed 10 cm from a dipole, for which q = 4 nC and s = 1 mm. What is the electric field inside the metal sphere? Justify your answer. Suppose you want to calculate the electric field at a point directly above the center of a uniformly charged disc. Over which variable(s) would you integrate? Include a picture.

Explanation / Answer

1)

no. proton is accelerated in the direction of electric filed. so, it moves from higher potential to lower potentail.

so, its potentail enrgy always decreases as it moves.

2) in side insulator electric filed less than out side.

becuase , E' = E/k (here k is always greater than 1)

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