Two batteries of emf 4V and 8V with internal resistance 1 Ω Ω and 2 Ω Ω are connected in a circuit with resistance of 9 Ω Ω as shown in figure. The current and potential difference between the points P and Q are -
A
A and 3V
B
A and 4V
C
A and 9V
D
A and 12V
Text Solution
Verified by ExpertsThe correct answer is:
A
i = 
⇒ V P – V Q = 
× 9 = 3 volt
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