Understanding Elementary Charge: Electrons Transferred and Direction of Movement

AI Thread Summary
When a positively charged conductor with 0.02 C contacts a neutral object, the charge distributes equally, resulting in both objects having 0.01 C. Electrons will move from the positively charged object to the neutral one. This transfer occurs because the neutral object needs electrons to balance the positive charge. The formula Q=ne is relevant, where Q is the charge and e is the elementary charge (1.60 x 10^-19 C). Understanding this process clarifies how charge distribution occurs between conductive objects.
soso
Messages
9
Reaction score
0
Elementary Charge- NEED HELP!

Object 1, a conductor with a positive charge og 0.02 C is brought into contact with an identical neutral object 2.

How many electrons move from one object to the other and in which direction?
 
Physics news on Phys.org
Please post your questions here, in the homework help forum. Also, please provide the work you've done so far, so that we can help you get unstuck.

What do you think of this problem?

- Warren
 
My Work..

I know that we need to use the formula Q=ne and we have the value for Q (0.02C). We can also use teh constant for e which is 1.60 * 10 6 -19 ... i do not know the signs of teh two values... Please tell me if i am on the right path.. and help me solve the problem.. Thank you.
 
Forget the formulas. You know the charge will distribute itself equally on both objects, since they are identical.

- Warren
 
?

So.. the charge will be 0.01C on both and electrons will be transferred from #1 to #2...?
 
Bingo.

- Warren
 

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 '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

Intro to Electromagnetism: five conceptual questions
Replies
3
Views
2K
What is the charge of each conductor afterwards?
Replies
35
Views
4K
Mechanisms Involved When Charging a Battery
Replies
10
Views
1K
I Thought I Understood Gauss' Law (Sheets)
Replies
26
Views
2K
How does the electroscope lose electrons to the Earth?
Replies
5
Views
2K
What is the initial charge of the second object in Coulombs?
Replies
3
Views
2K
Ways of transferring charge between objects (conduction and induction)
Replies
25
Views
1K
Electric field external to Conducting Hollow Sphere with charge inside
Replies
23
Views
3K
How do the electroscope leaves behave after grounding?
Replies
8
Views
4K
Electric Fields and Charges Fill in the blanks
Replies
4
Views
4K

Hot Threads

Recent Insights

Back
Top