Friday, March 4, 2011

Electricity Numbers you need to know (pt 1)

The charge of an electron is              q = – 1.6 x 10-19C

The charge of a proton is                  q = + 1.6 x 10-19C        

The strength of the electric field         k = 8.9 x 109 Nm2 /C2

The strength of gravity                  G = 6.67 x10-11 Nm2 /kg2

The mass of an electron                 me =  9 x 10-31 kg

The mass of a proton                     mp =  2 x 10-27 kg

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