In each of the drawings below a small electric charge is being moved within an e

Question

In each of the drawings below a small electric charge is being moved within an electric field. In each drawing E (the electric field) is the same, the charge that is being moved is the same, and the distance d that the charge is being moved is the same. Rank the three drawings in order from the most work done by E on the charge to the least work done by E on the charge. Most work done on the charge by the electric field E. Intermediate amount of work done by the electric field E on the charge: Least work done on the charge by the electric field E: drawing b drawing c Not enough information to determine the answer. drawing a. In each of the drawings below a small electric charge is being moved within an electric field. In each drawing E (the electric field) is the same, the charge that is being moved is the same, and the distance d that the charge is being moved is the same. Rank the three drawings in order from the largest potential difference between A and B to the lowest potential difference between A and B. largest potential difference between A and B: intermediate potential difference between A and B: smallest potential difference between A and B: drawing a drawing b Not enough information to determine the answer drawing c

Explanation / Answer

question 1:

work done=force*distance*cos(angle between force and displacement)

case a:

angle =0 degrees

work done=E*d*cos(0)=E*d

case b:

angle =90 degrees

work done=E*d*cos(90)=0

case c:
angle =30 degrees

work done=E*cos(30)=sqrt(3)*E/2

so most work done=case a

intermediate work done=case b

least work done=case c

Question 2.

potential difference=-E*distance along the electric field

so case a will have largest difference

case c will have intermediate difference

case b will have least potential difference.

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.