Unit Information
Faraday
A unit of electric charge used in electrochemistry, defined as the magnitude of charge of one mole of electrons. Named after Michael Faraday.
Coulomb
The SI derived unit of electric charge, defined as the quantity of electricity transported by a constant current of one ampere flowing for one second.
Conversion Tips
- Remember to check your decimal places for accuracy.
- This conversion is commonly used in international applications.
- Consider the context when choosing precision levels.
- Double-check calculations for critical applications.
Learn More About Electric_charge
Scientific Overview
Electric charge is a fundamental physical property of matter that causes it to experience a force when placed in an electromagnetic field. It exists in discrete quantities and is conserved in isolated systems.
Historical Background
The concept of electric charge dates back to ancient Greek observations of static electricity. Benjamin Franklin established the positive and negative charge convention. Charles-Augustin de Coulomb quantified electrostatic forces in 1785.
Real-World Applications
Electronics
Charge movement forms the basis of electric current in circuits.
Electrochemistry
Charge transfer enables batteries and electrochemical reactions.
Particle Physics
Elementary particle charges define fundamental interactions.
Industrial Processes
Electrostatic principles are used in painting, printing, and air filtration.
Interesting Facts
- The elementary charge of a proton is approximately 1.602 × 10⁻¹⁹ coulombs.
- Lightning can transfer billions of coulombs of charge in milliseconds.
- The human body can store static charges up to several thousand volts.
- Quarks have fractional charges of ±1/3 or ±2/3 of the elementary charge.
Key Formulas
Coulomb's Law
F = k·q₁q₂/r²Charge Definition
q = I·tElectric Field
E = F/qGauss's Law
∮E·dA = q/ε₀