Get Help with Your University Course: Q1-C

[Caboose42]

Hey all, as you can see I’m new here and signed up because my uni course is annoying and I was hoping for some good advice and I also found some good material I can use for my assignments.

Currently this is the question that has been giving me grief and my lecturer hasn’t replied to my emails.

part A was to find the magnitude which i have.

Q1. Two point charges q1 = (+)1.5 uC and q2 = (+) 8.5 uC are separated by a distance of 10cm.

B) At what point on the line joiing the two charges should a charge q = (-) 1uC be placed so that the net force on q to q1 and q2 is zero

C) Find the location of charge q for zero if the charge q2 is replaced by a charge of (-) 10 uC

 

[nicksauce]

Hi Caboose42,

You have to show an attempt at the problem before we can help you, otherwise we won't know what exactly it is that is giving you grief!

Can you write the force on the charge q as a function of position? (First pick an appropriate axis... you could call the position of q1, x=0 and the position of q2, x=10cm, for example.)