Fundamental Constant Calculator

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electron charge, e
=
coulombs, C

10 pC (read as 10 pico coulombs) = 10e-12 coulombs, C

In high voltage (115 kV as an example) transformer and circuit breakers partial discharge are measured in pico coulombs, pC. Understanding this measurement is important in reading transformer factory test report.

ampere-hr, Ah
=
coulombs, C

1 Ampere = 1 coulomb / sec; 1 coulomb = 16 x 1018 electron charge
it means 16 quintillion of electron charge is being transported per second.
16 quintillion = 16,000,000,000,000,000,000

Faraday constant, F = coulombs / mol

gas constant , R = J / (kmol*K)

gas constant , R = kPa*m3 / (kmol*K)

gas constant , R = ft-lbf / (lb mole - 0R)

gas constant , R = L-atm / (mole-K)

g, gravity acceleration constant on earth = m / sec2

g, gravity acceleration constant on earth = ft / sec2

molar volume , Vm = L / kmol

speed of light , c = m/s

speed of light , c = km/s



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