How did physicists come up with a standard for measuring charge? How an electrical measurement of charge was made?
0
$\begingroup$
$\endgroup$
0
$\begingroup$
$\endgroup$
You can of course find this on wiki...or many other places.
Today, charge is related to the elementary charge e
The SI unit of charge, the coulomb, "is the quantity of electricity carried in 1 second by a current of 1 ampere A". Conversely, a current of one ampere is one coulomb C of charge going past a given point per second:
$1 A = 1 \frac{C}{s}$
The Ampere is defined by the elementary charge, see e.g. wiki for more detail than you probably want.
Practical measurement - if you have a capacitor of known strength, you can measure the charge on it with a voltmeter.
Hope that helps.
-
$\begingroup$ I am unable to understand this. When charges were discovered and a mathematical equation involving charges is not known , what reference standard was chosen to represent 1 C of charge? $\endgroup$ – Aravind Oct 13 at 12:37
-
$\begingroup$ In June 1785 Coulomb measured the electric force. aps.org/publications/apsnews/201606/physicshistory.cfm If what you are asking is how did he come up with the constant, that has been asked before physics.stackexchange.com/questions/243259/… $\endgroup$ – Mr Anderson Oct 13 at 23:31
Not the answer you're looking for? Browse other questions tagged charge conventions si-units metrology or ask your own question.
Hot Network Questions
- Why is JavaScript not compiled to bytecode before sending over the network?
- Who owns copyright on works found in a storage unit/attic?
- When was Newton "not good enough" for spaceflight; first use and first absolute requirement for relativistic corrections?
- Site is accessible by domain in all browsers but Chrome
- Create new contact sub-type when extension is installed
- Monthly budget screen - need to take into account whether it's early/late in the month
- Why doesn't the road lose its thickness to the tyre?
- Simple converter: Is it better to use a function within a function?
- Would a level 18+ Champion Fighter recover HP outside of combat?
- What animals do we use, if any, to describe the opposite of "a dog", used for something of an inferior quality?
- How can conflict be conducted between nations when warfare is never an option?
- Is DC 5V and 2A dangerous to me?
- What's the difference between the enumerate and enumitem packages?
- How to translate “就这么着吧”？
- Missing number, treated as zero. <to be read again> *
- Error Call to a member function beginTransaction() on a non-object when saving to database
- When is it not okay to cheap out on bike parts?
- Simulating these special dice on more regular dice
- How to create an EC point from a plaintext message for encryption
- Java implementation of the caesar-cipher
- Help me pair my left and right socks!
- What is the earliest example of an eldritch abomination in human form turning to slime after death?
- Twelve Labours - Conclusion
- Is rotating a pawn so that it faces a different direction and then moves in that direction technically permitted according to the 2018 FIDE Laws?
