Two voltage sources of open-circuit voltage of 10 V and 12 V with internal resistances 2 Ω and 3 Ω respectively are connected in parallel with like terminals shorted together. What is the effective open-circuit voltage of the combination?

Two voltage sources of open-circuit voltage of 10 V and 12 V with inte

1.	Two voltage sources of open-circuit voltage of 10 V and 12 V with internal resistances 2 Ω and 3 Ω respectively are connected in parallel with like terminals shorted together. What is the effective open-circuit voltage of the combination?
A.	11 V
B.	10 V
C.	12 V
D.	10.8 V
Answer» E.