Two batteries having unequal EMF ______?

غیر مساوی ای ایم ایف والی دو بیٹریاں ______؟

Can be connected only in parallel

Can be connected in either series or parallel

Can be connected only in series

Cannot be connected

Two batteries with unequal EMF can be connected only in series.

Connecting them in parallel can cause excessive current flow and potential damage.