Answer to Question #59792 in Electricity and Magnetism for mabel

Question

Calculate the potential difference between the plates of a parallel plate capacitor so that the gravitational force on a proton would be balanced by the electric field (proton mass =
1.67×10−27kg
, electronic charge
e=1.6×10−19C
, plate separation is 0.5cm. Take
g=9.8m/s2)