More questions with this problem (e) What is the potential difference between po

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More questions with this problem

(e) What is the potential difference between point E and B? And which one is at the higher potential?

(f) how much work is required to move a -1.0 muC charge from A to E?

(g) how much work is required to move a -1.0 muC charge from B to D to C?

(h) A point charge gains 50 muJ of electric potential energy when it is moved from point G to point D, What is the magnitude and sign of the charge??

The sketch below shows cross sections on the surfaces between two charged conductors that are shown in solid gray. Various points on the surfaces near the conductors are labeled A, B, C....I. For each of the following questions box your answer and either give a brief explanation for your answer or show your reasoning mathematically. (a) At which of the labeled points will the electric field have the greatest magnitude? (b) At which of the labeled points will an electron have the greatest potential energy? (c) What is the magnitude of the electric field at B? (d) What is the direction of the electric field at B?

Explanation / Answer

(A) E = - dV/dr

magnitude of E will be maximum in the region where distance between two potential line is minimum.

that is I.

(B) U = q V

where q is negative,

hence U will be maximum where V is negative and have greatest magnitude.

that is poiny H.

(c) E = (40 - 0) / 0.4

E = 400 V/m

(D) direction of field is from high potential to low potential.

to the left.

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