Neutral Balloon: Examining its Charge After Electron Removal

AI Thread Summary
Removing 13,000 electrons from a neutral balloon results in a net positive charge. The formula q=ne, where 'n' represents the number of electrons removed, is used to calculate the charge. Each electron has a charge of approximately -1.6 x 10^-19 coulombs. Therefore, the total charge of the balloon after the removal can be calculated by multiplying the number of removed electrons by the charge of a single electron. The balloon will have a charge of approximately +2.08 x 10^-15 coulombs.
NINHARDCOREFAN
Messages
118
Reaction score
0
You have a neutral balloon

What is its charge after 13000 electrons have been removed from it?

I know you have to use, q=ne but I don't know what to plug in for n
 
Physics news on Phys.org
Originally posted by NINHARDCOREFAN
I know you have to use, q=ne but I don't know what to plug in for n
What do you think "q=ne" means?
 
What will be the charge for single electron.

How many electrons u have been given.

So the balloon will be deprived by how many electrons?
 
Never mind, I figured it out
 
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...
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...
Back
Top