Submission 1 (0/1 points) Wednesday, September 6 2017 07:12 PM E Two metallic sp
ID: 1652200 • Letter: S
Question
Submission 1 (0/1 points) Wednesday, September 6 2017 07:12 PM E Two metallic spheres of the same size with charges +6.0 C and-3.0 C are kept 0.66 m apart. Find the location where the electric field is zero if the +6.0-uC charge is at the origin and the-3.0-uC charge is at x = 0.66 m | x=2.936/ X Your response differs from the correct answer by more than 10%. Double check your calculations. m Submission 2 (0/1 points) Wednesday, September 6 2017 07:12 PM ED Two metallic spheres of the same size with charges +6.0 C and-3.0 C are kept 0.66 m apart. Find the location where the electric field is zero if the +6,0-C charge is at the origin and the-30-pC charge is at x 166 m. x = |-0.296 X The response you submitted has the wrong sign. m Submission 3 (0/1 points) Wednesday, September 6 2017 08:45 PM EDT Two metallic spheres of the same size with charges +6.0 C and-3.0 C are kept 0.66 m apart. Find the location where the electric field is zero if the +6.0-VC charge is at the origin and the -3.0-UC charge is at x0.66 m. Your response differs from the correct answer by more than 10%. Double check your calculations. mExplanation / Answer
The location should be near to smaller magnitude charge i.e. -3uC.
Nowfield due to both charges will cancel each other,
E = k*6/(d-0)^2 + k*-3/[d-0.66]^2 = 0
2/d^2 = 1/(d-0.66)^2
[d-0.66]/d = sqrt(1/2)
1 - 0.66/d = 0.707
0.66/d = 0.293
d = 0.66/0.293
= 2.25 m answer