Net force, electric field and potential

AI Thread Summary
The discussion revolves around calculating the net force, electric field, and electric potential at the origin due to two particles with 2.00 microcoulombs charges and a test charge of 1.28x10^-18C. For part (a), the net force on the test charge can be determined by calculating the force from each particle and adding them as vectors. Part (b) requires finding the electric field at the origin, which also involves vector addition of the fields from both charges. For part (c), the electric potential can be calculated using the provided equation, considering the distances from the charges to the origin. Overall, understanding vector addition is crucial for solving parts (a) and (b).
tag16
Messages
95
Reaction score
0

Homework Statement


Given two particles with 2.00 microcoulombs charges and a particle with charge q= 1.28x10^-18C at the origin.(a) what is the net force exerted by the two 2.00 microcoulombs charges on the test charge q? (b) What is the electric field at the origin due to the two 2.00 microcoulomb particles? (c) What is the electric potential at the origin due to the two 2.00 microcoulombs particles?


Homework Equations


Vp=k(q1/r1+q2/r2)


The Attempt at a Solution



I have no idea how to do part a and b, but I think just use the above equation for part c correct?
 
Physics news on Phys.org
Hi tag16! :wink:
tag16 said:
Given two particles with 2.00 microcoulombs charges …

(erm :redface: … where? :confused: … anyway:)

Forces and fields are both vectors, and so they add like vectors, so just find the force (or field) from each particle, and add. :smile:
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'Calculation of Tensile Forces in Piston-Type Water-Lifting Devices at Elevated Locations'

Thread 'Calculation of Tensile Forces in Piston-Type Water-Lifting Devices at Elevated Locations'

Figure 1 Overall Structure Diagram Figure 2: Top view of the piston when it is cylindrical A circular opening is created at a height of 5 meters above the water surface. Inside this opening is a sleeve-type piston with a cross-sectional area of 1 square meter. The piston is pulled to the right at a constant speed. The pulling force is（Figure 2）： F = ρshg = 1000 × 1 × 5 × 10 = 50,000 N. Figure 3: Modifying the structure to incorporate a fixed internal piston When I modify the piston...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Capacitors, equipotentials, and electric fields
Replies
5
Views
907
Find net velocity of charged particle in electric field (symbols only)
Replies
14
Views
3K
Earthing of two parallel conducting plates
Replies
11
Views
1K
Gauss' Law question about a conducting rod
Replies
3
Views
2K
Four Electric Dipoles = What level of electric flux?
Replies
3
Views
1K
Direction of electric field vector on the surface of charged conductor
Replies
9
Views
1K
Induced charge on a conducting sphere sliced by a plane
Replies
2
Views
1K
Electric Potential Energy of Point Charge Systems
Replies
2
Views
897
How can voltage between unlike charges decrease with proximity?
Replies
4
Views
764
Where is the net electric field zero?
Replies
2
Views
3K

Hot Threads

Recent Insights

Back
Top