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## Class 10 Physics (India)

### Course: Class 10 Physics (India)>Unit 3

Lesson 1: Electric current & circuit

# Unit of charge (Coulombs)

Let's explore what the unit of electric charge (Coulombs is) . Created by Mahesh Shenoy.

## Want to join the conversation?

• Which experiment did Charles Coulombs dis to find the Charge?
• Sir, How Did we find the charge of electrons or protons in Coulombs[C]?
• 1e/1.6*10^-19=-1.6*10^-19/1.6*10^-19c=6.25*10^18=1c
• Can electrons move in the speed of light?
• No the speed of an electron is less than 1% of the speed of light
• If -1 coulomb has 6.25*10^18 electrons then how many protons does 1 coulomb have?
(1 vote)
• 1 coulomb has -6.25*10 by power 18 electrons and proton has +6.25*10 by power 18
• at , why is the charge of a single electron that number?
(1 vote)
• It is experimentally found that the charge of an electron is 1.6020*10^-19 C.For more information check J.J thomson's Cathode ray experiment, Robert A. Millikan's oil drop experiment and their results.
• What is charge of a proton
(1 vote)
• Proton is positively charged particles. The magnitude of charge on a proton is the same as that of an electron but opposite in direction.
i.e. 1.6*10^-19 C