Question

Problem 18.19 Constants Two point charges q1 = +2.65nC and q2 = -6.80nC are 0.100 m apart. Point A is midway between them; point B is 0.080 m from q1 and 0.060 m from q2. (See Figure 1.) Take the electric potential to be zero at infinity. Part B Find the potential at point B. Express your answer in volts to three significant figures. V = -986 V Part C Find the work done by the electric field on a charge of 2.40 nC that travels from point A to point B. Express your answer in joules to two significant figures.

          Problem 18.19
Constants
Two point charges q1 = +2.65nC and q2 = -6.80nC are 0.100 m apart. Point A is midway between them; point B is 0.080 m from q1 and 0.060 m from q2. (See Figure 1.) Take the electric potential to be zero at infinity.
Part B
Find the potential at point B.
Express your answer in volts to three significant figures.
V = -986 V
Part C
Find the work done by the electric field on a charge of 2.40 nC that travels from point A to point B.
Express your answer in joules to two significant figures.

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Problem 18.19
Constants
Two point charges q1 = +2.65nC and q2 = -6.80nC are 0.100 m apart. Point A is midway between them; point B is 0.080 m from q1 and 0.060 m from q2. (See Figure 1.) Take the electric potential to be zero at infinity.
Part B
Find the potential at point B.
Express your answer in volts to three significant figures.
V = -986 V
Part C
Find the work done by the electric field on a charge of 2.40 nC that travels from point A to point B.
Express your answer in joules to two significant figures.

Added by Samantha O.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Adi S

11/22/2023

Step 1

We can use the formula for electric potential due to a point charge: V = kq/r where k is Coulomb's constant (9 x 10^9 Nm^2/C^2), q is the charge, and r is the distance from the charge to the point where we want to find the potential. For point charge q1, the Show more…

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Problem 18.19 Find the potential at point B. Two point charges q1 = +2.65 nC and q2 = -6.80 nC are 0.100 m apart. Point A is midway between them; Point B is 0.080 m from q1 and 0.060 m from q2. (See Figure 1) Take the electric potential to be zero at infinity. Express your answer in volts to three significant figures. Find the work done by the electric field on a charge of 2.40 nC that travels from point A to point B. Express your answer in joules to two significant figures.

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