If the magnitude of a positive charge is tripled, what is the ratio of the original value of the electric field at a point to the new value of the electric field at the same point?
A- 1:2
B- 1:3
C- 1:6
D- 1:9
I used the formula E = F/q (F=qE). I tripled the q which I figured would make the electric field 1/3 of the original (E = F/3q). So, i reasoned 1:3 as the answer.
The AAMC solution mentions using E = kq/r^2
Is my reasoning wrong? When do you use the formula E = F/q vs E =...
Q pack Physics 78
A- 1:2
B- 1:3
C- 1:6
D- 1:9
I used the formula E = F/q (F=qE). I tripled the q which I figured would make the electric field 1/3 of the original (E = F/3q). So, i reasoned 1:3 as the answer.
The AAMC solution mentions using E = kq/r^2
Is my reasoning wrong? When do you use the formula E = F/q vs E =...
Q pack Physics 78