–1.2 V, +15 V, and –6 V batteries are connected in series. The magnitude of total voltage is _________.

–1.2 V, +15 V, and –6 V batteries are connected in series. The mag

1.	–1.2 V, +15 V, and –6 V batteries are connected in series. The magnitude of total voltage is _________.
A.	7.8 V
B.	10.2 V
C.	22.2 V
D.	1.3 V
Answer» B. 10.2 V