Homework Help: physics

Posted by physics on Sunday, March 15, 2009 at 4:20pm.

two point charges are 10.0 cm apart and have chargeso of 2.0 uC (micro)and -2 uC, respectively. What is the magnitude of the electric field at the midpoint between the two charges?

i think the answr is zero..

but i don't understand how to get to it...can you please show me in clear steps how to solve for this...please. i don't understand the way my teacher showed it., pleae show me in steps with explanation. thank you a lot

physics - bobpursley, Sunday, March 15, 2009 at 4:28pm
Definitely not zero. The E contribution from each charge points in the same direction, not in opposite.

Isn't E=kq/r^2, so you double it, and point it toward the negative charge?
physics - physics, Sunday, March 15, 2009 at 4:36pm
but i checked and it does point in the opposite direction

the charges are differnect signs.....

i'm confused!

Answer this Question

Related Questions

physics - two point charges are 10.0 cm apart and have chargeso of 2.0 uC (micro...
Physics - Two point charges are 10.0 cm apart and have charges of 2.0 μ...
physics - Two point charges are 10.0 cm apart and have charges of 2.0 µC ...
physics - Three point charges, A=2.00 uC, B=7.00 uC, C=-4.00 uC, are located at ...
Physics - Gind the force between charges of +10.o uC and -50.0 uC located 20.0 ...
physics - PLEASE HELP!! I HAVE A TEST TOMORROW!! if Q=30 uC, q=5.0 uC, and d=...
Science - Two point charges are 10.0 cm apart and have charges of 2.0 μ...
Physcis - In the figure below find the electric potential at point P due to the...
Physics - A +2 uC and a +10 uC are 3cm apart a) Find the electrostatic force ...
PHYSICS - (#1) If two pith balls - one which is neutral and another which has a ...

For Further Reading

First Name:
School Subject:
Answer: