An infinite non conducting sheet has a surface charge density Ï = +5.80 pC/m2. (a) How much work is done by the electric field due to the sheet if a particle of charge q = +1.60 Ã 10-19 C is moved from the sheet to a point P at distance d = 3.56cmfrom the sheet?(b) If the electric potential V is defined to be zero on the sheet , what is V at P