Work From Electric Force Video Lessons

Video Thumbnail

Concept

Problem: Point charges q1 = +2.00 μC and q2 = -2.00 μC are placed at adjacent corners of a square for which the length of each side is 3.50 cm. Point a is at the center of the square, and point b is at the empty corner closest to q2. Take the electric potential to be zero at a distance far from both charges.A) What is the electric potential at point a due to q1 and q2?B) What is the electric potential at point b?C) A point charge q3 = -5.00 μC moves from point a to point b. How much work is done on q3 by the electric forces exerted by q1 and q2?

FREE Expert Solution

Electric potential:

V=kqr

(a)

r1a = r2a = (1/2)hypotenuse = (1/2)[(3.52 + 3.52)(1/2)] = 2.475cm(1m/100cm) = 0.02475m

97% (212 ratings)
View Complete Written Solution
Problem Details

Point charges q1 = +2.00 μC and q2 = -2.00 μC are placed at adjacent corners of a square for which the length of each side is 3.50 cm. Point a is at the center of the square, and point b is at the empty corner closest to q2. Take the electric potential to be zero at a distance far from both charges.


A) What is the electric potential at point a due to q1 and q2?

B) What is the electric potential at point b?

C) A point charge q3 = -5.00 μC moves from point a to point b. How much work is done on q3 by the electric forces exerted by q1 and q2?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Work From Electric Force concept. You can view video lessons to learn Work From Electric Force. Or if you need more Work From Electric Force practice, you can also practice Work From Electric Force practice problems.