shown a network of four resistance and three batteries

Mark the incorrect statement.

Options

A. The current flowing in the left loop is independent of the right loop.
B. The current flowing in the right loop is independent of the left loop.
C. Both 30 V and 15V batteries do not produce current in the branch CF.
D. Both (a) and (c )

Answer

C

Explanation

Left loop :
`V_F +6 +4I_1 - 30 +2I_1 = V_F`
`I_4 = 4A`

Right loop :
`V_F +6+ 1I_2 - 15 + 2I_2 =V_F 30V`
or `I_2 =3A`
Net current through 6V battery is
`I = I_1 +I_2 = 4+3 = 7A`
The 6 V battery is getting charged. Both 15V and 30V batteries
produce current in 6V battery.