Can u just tell me what is the right answer and put the letter next to each ques

Question

Can u just tell me what is the right answer and put the letter next to each question number. I don't want you to show me the work I just want the correct answer.
Thank you

15. Which otn of the folowisg tatemeuts s is correct? A, when the perticle B. when the particle oves in the direction of E na electrtatie otia C, as long as the location of the particle changs, its electcootatihe pokernial mser wia moves in the direetlom ot & ts elestrostate pokestial ese change (but we would need to know the sign of ils thirge to deveemine be t D. more information is beeded to determine the ocezect aza 16. Which oue of the following statemests regarding a nesgatiwelye arti trostatic field E is correct? A. when the particle moves in the direction ot & its electroetatie potendial creasers B. when the particle moves in the direction of E a electroetatic potenaial eergy de C. more information is needed to determine the correct anawer 17. Which one of the following statemente regarding the continuity of is true? A. E will always be discontinuous at the surface of a comductor B. 5 can never be discontinuous at the surfaoe of an inszulatot C. É will always be disontinuous at any surface (oondractor or naot-conducton) witha non-zero surface charge density D. E will only be discontinuous at the surface of a conductor with a nob-eto surta charge density E. none of the above

Explanation / Answer

15) when a positive charge moves in the direction of electric field, the field does positive work on it and hence potential energy decreases. similarly when a negative charge moves in the direction of electric field, the field does negative work on it and hence potential energy increases.

so we need to know the sign of the charge in order to know whether potential energy is increasing or not.

CORRECT OPTION IS C.

16) when a negative charge moves in the direction of electric field, the field does negative work on it and hence potential energy increases. THE CORRECT OPTION IS A.

17) E will always be discontinuous at any surface with non-zero surface charge density. CORRECT OPTION IS C.

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