The potential difference between points B and D is. (A) (2/7)V (B) (2/9)V

Question

Figure shows four cell E, F, G and H of emfs 2V, 1V, 3V and 1V and internal resistances 2Ω, 1Ω, 3Ω and 1Ω respectively

The potential difference between points B and D is. 

(A) (2/7)V 

(B) (2/9)V 

(C) (2/11)V 

(D) (2/13)V

Answer 1

The correct option (D) (2/13)V

Explanation:

P.D between B & D is I₃ × 2Ω

= (1/13) × 2 = (2/13)V