If three cell are connected in parallel then equivalent emf……. and equivalent internal resistance is …..

Answer

`E_(eq) = ((E_(1))/(r_(1)) +(E_(2))/(2_(2)) +(E_(3))/(r_(3)))/((1)/(r_(1)) + (1)/(r_(2)) + (1)/(r_(3))) = (sum_(t = 1)^(1) E_(1)//r_(1))/(sum_(t= 1)^(2) 1//r_(1)) : r_(eq) = (r_(1)r_(2)r_(3))/(r_(1)r_(2) + r_(2)r_(2) + r_(3)r_(1))`