A) 15 V
B) 30 V
C) 14 V
D) 18 V
Correct Answer: C
Solution :
It is clear that the two cells oppose each other, hence, the effective emf in closed circuit is 18 - 12 = 6 V and net resistance is \[1+2=3\,\Omega \](because in the closed circuit the internal resistances of two cells are in series). The current in circuit will be in direction of arrow shown in the figure.You need to login to perform this action.
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