Thread: Electrostatics
View Single Post
May19-11, 12:14 AM   #1
 

Electrostatics


1. The problem statement, all variables and given/known data
A negatively charged metallic ball is supported on an insulating stand.We wish to measure the electric field at a point P in the same horizontal level as that of the metallic ball.To do so,we put a positive charge q and measure F/q.The electric field at the point P is
a)=F/q
b)<F/q
c)>F/q

the answer given is <F/q...i cant understand how..


2. Relevant equations



3. The attempt at a solution
PhysOrg.com science news on PhysOrg.com

>> City-life changes blackbird personalities, study shows
>> Origins of 'The Hoff' crab revealed (w/ Video)
>> Older males make better fathers: Mature male beetles work harder, care less about female infidelity