The equivalent emf \[{{\varepsilon }_{\operatorname{eq}}}\] of the two cells is between \[{{\varepsilon }_{1}}\] and \[{{\varepsilon }_{2}},\ i.e.{{\varepsilon }_{1}}<{{\varepsilon }_{\operatorname{eq}}}<{{\varepsilon }_{2}}\] doneclear
B)
The equivalent emf \[{{\varepsilon }_{\operatorname{eq}}}\] is smaller than \[{{\varepsilon }_{1}}\]. doneclear
C)
The \[{{\varepsilon }_{\operatorname{eq}}}\] is given by \[{{\varepsilon }_{\operatorname{eq}}}\]=\[{{\varepsilon }_{1}}\]+ \[{{\varepsilon }_{2}}\] always. doneclear
D)
\[{{\varepsilon }_{\operatorname{eq}}}\] is independent of internal resistances \[{{r}_{1}}\] and \[{{r}_{2}}\] doneclear