ELECTROSTATICS
STATIC ELECTRICITY
Only insulators can hold charge
When a polythene rod is rubbed with a dry cloth electrons
transfer from the cloth to the rod
The opposite happens with a Perspex rod
Charge on an electron = -1.6 x 10-19 C
Number of electrons in 1 coulomb = 6.25 x 1018 e-
Charge on object = number of electrons (or protons) X 1.6 x 10 -19
Milli = m = 10-3
Micro = μ = 10-6
Nano = n = 10-9
Pico = p = 10-12
ELECTROSTATIC FORCES
STATIC ELECTRICITY
Only insulators can hold charge
When a polythene rod is rubbed with a dry cloth electrons
transfer from the cloth to the rod
The opposite happens with a Perspex rod
Charge on an electron = -1.6 x 10-19 C
Number of electrons in 1 coulomb = 6.25 x 1018 e-
Charge on object = number of electrons (or protons) X 1.6 x 10 -19
Milli = m = 10-3
Micro = μ = 10-6
Nano = n = 10-9
Pico = p = 10-12
ELECTROSTATIC FORCES
