Question

I need someone to explain how to do this, I really don't understand it!

Answer 1

In the process of rubbing a rubber rod with wool, 2.5 x 10^6 electrons are transferred from the rod to the wool.

How much charge has been transferred?

Answer 2

@IrishBoy123

Answer 3

@agent0smith

Answer 4

What's the charge on an electron?

Answer 5

\[1.6*10^{-19} C\]

Answer 6

So then what would be the charge on two electrons? or three? Or 2.5 x 10^6?

Answer 7

Sorry I don't understand. Am I supposed to multiply something?

Answer 8

Let's say the if the charge on an electron was 1 C. What would be the charge on two electrons? Or three? Or 2.5 x 10^6?

Use the same logic.

Answer 9

2.5 10^6 x 1.6x10^-19 Coulombs. Good old "charging by friction" this is when you rub various "insulators" with various "cloth insulators", and stick 'em on the GOLD LEAF ELECTROSCOPE to see the leaves diverge, and thereby show the one person who's still awake CHARGE BY FRICTION. The slightly more interesting thing about those 'scopes is that they were one of the means by which COSMIC RAYS were discovered (someone up in a balloon watching his 'scope go "all funny" in the midst of an otherwise unseen COSMIC RAY SHOWER. Interesting to actually read a little about exactly how charging by friction works ... I can't say I've ever understood ebonite, fur etc etc etc.
bon chance et bon voyage
http://perendis.webs.com

Answer 10

The man who went up in the balloon was a german scientist called Hess. He got, I think, I Nobel prize for discovering COSMIC RAYS. He also paved the way for a celebrated video to be recorded under the auspices of MIT, that "verifies" Einstein's special theory of relativity. Keys being that MIT went to the top of Mt Washington, and Hess went as high as a balloon can take you. (Special Relativity, by AP French, MIT).
COSMIC RAYS are/were a departure from protons neutrons and electrons, and were part of the stimulus towards PARTICLE PHYSICS.
It's also possible that the LARGE HADRON COLLIDER in Europe owes some of it's ancestry to the discoveries of particle physics.
Charging by friction has a lot of applications in a lot of places, and is sometimes known as "STATIC".
There is also "hair combing" - the comb becomes charged when you comb your locks.

Mind you if you DON'T understand this, you can join an exclusive club of about, at the moment, 2 members. Professor Richard Feynman, nobel, and Osprey being the two members. :)

Answer 11

I got 4 x 10^-13 c