A metal sphere is electrically charged to Q_(0) and hangs on an insulting cord. The sphere slowly loses it charge because the air has a non zero resistivity rho. The potential of sphere of radius r_(0) is to be calculated with reference to infinity. Assume that resistivity of air is every where the same. Mass the correct statements

A metal sphere is electrically charged to Q_(0) and hangs on an insult

1.	A metal sphere is electrically charged to Q_(0) and hangs on an insulting cord. The sphere slowly loses it charge because the air has a non zero resistivity rho. The potential of sphere of radius r_(0) is to be calculated with reference to infinity. Assume that resistivity of air is every where the same. Mass the correct statements
Answer» Capacitance of sphere is `4 pi epsilon_(0)r_(0)` ELECTRICAL resistance of air is `R = (rho)/(4 pi r_(0))` Initial current is `(Q_(0))/(rho epsilon_(0))` Time in which charge gets HALVED is `rho epsilon_(0) ln 2` Answer :A::B::C::D