Question

Object A, which has been charged to + 12 nC , is at the origin. Object B, which has been charged to − 30 nC , is at (x,y)=(0.0cm,2.0cm). Take k=9∗10−5 N2cm2/nC2

a. What is the magnitude of the electric force on object A?

Express your answer in newtons.

b. What is the magnitude of the electric force on object B?

Express your answer in newtons.

c. What is the direction of the electric force on object A?

positive x-axis

positive y-axis

negative x-axis

negative y-axis

d. What is the direction of the electric force on object B?

positive x-axis

positive y-axis

negative x-axis

negative y-axis

e. If we now double the charge on A, what is the electrostatic force that B exerts on A?

f. Keeping the charge on A to be twice its original value, what is the electrostatic force that A exerts on B?  

Answer 1