Q. One electric cell (having emf of $2 \,V \&$ internal resistance of $0.1\, \Omega$ ) and other electric cell (having emf of $4 \,V \&$ internal resistance of $0.2\, \Omega$ ) are connected in parallel to each other. Then its equivalent emf will be . ______$V$
Gujarat CETGujarat CET 2020
Solution: