Question

Two point charges, each with charge q=4nC, are placed at the following positions in the x,y plane:

Q₁=4 nC at (x,y)=(0,0); Q₂=4 nC at (x,y)=(2cm,2cm).

What is the magnitude of the force that charge Q₂ exerts on charge Q₁, and the resultant angle on which it acts? Please select answer and provide full solution.

a,) l F_1,2 l = 92 $\mu$ N, 225 degrees

b,) l F_1,2 l =23 $\mu$ N, 45 degrees

c.) l F_1,2 l =30 $\mu$ N, 45 degrees

d.) l F_1,2 l =180 $\mu$ N, 225 degrees

Answer 1

F = kq_1q_2/r^2 Here, q_1 and q_2 are the magnitude of charges and r is the distance between the charges F = (9 times 10^9)(4 times 10^-9)(4 times 10^-9)/(squareroot 2^2 + 2^2)^2 F = > 1.8 times 10^-8 N