PLEASE URGENT CAN SOMEONE HELP ?
a spherical metal dome has a diameter of 32cm . The surface charge on the dome is +2.8 C .

(a) calculate the electric field strength at the surface
for this i used the eqn ( e=q\4e pie r sqaured) but it didnt work.
(b) the force experience by a dust particle of charge +e. on the surface of the dome.
(c) surface potential of the dome.

Question

PLEASE URGENT CAN SOMEONE HELP ? 
a spherical metal dome has a diameter of 32cm . The surface charge on the dome is +2.8 C .

(a) calculate the electric field strength at the surface
for this i used the eqn ( e=q\4e pie r sqaured) but it didnt work.
(b) the force experience by a dust particle of charge +e. on the surface of the dome.
(c) surface potential of the dome.

anonymous · Answer

@ganeshie8

anonymous · Answer

Are you inputting into your calculator correctly?