Homework: Electric Energy Ranking I. For a charge Q = +25 pc: a. Rank the electr

Question

Homework: Electric Energy Ranking I. For a charge Q = +25 pc: a. Rank the electric energy between Q and q for a charge +10 C placed at points A-F. Largest 1.2 2 E 3.0 4. C 5. F 6. A-Smallest b. Rank the electric energy between Q and q for a charge q = +3 C placed at points A-E Largest- 2 5 k6. Smallest c. Rank the electric energy between Q and q for q = +100 C placed at points A-F Largest 1.0-2.- 3.-0-4 Smallest 2. Explain your reasoning for you rakings in Question 1. Qssumphons Dictance from & to 9 af Q an9, 2he smallest the

Explanation / Answer

We know that the electric potential energy is given by:

U = k q1q2/r

So we see from the formula that U is inversely proportional to the distance.

a)Clearly from the figure, r(B) = r(C) and r(D) = r(E). So ranking will be:

D = E > B = C > F > A

b)Since the magnitude of numerator is same for all

D = E > B = C > F > A

c)D = E > B = C > F > A

(3)We know that the electric potential energy is given by:

U = k q1q2/r

So we see from the formula that U is inversely proportional to the distance.

U = k -25 x 10/ r = -250 k/r

a)Clearly from the figure, r(B) = r(C) and r(D) = r(E). So ranking will be:

A > F > B = C > D = E

b)A > F > B = C > D = E

c)A > F > B = C > D = E

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

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