Current Electricity - Result Question 39

41. Two batteries of emf 4V and 8V with internal resistance 1Ω and 2Ω are connected in a circuit with a resistance of 9Ω as shown in figure. The current and potential difference between the points P and Q are

[1988]

(a) 13A and 3V

(b) 16A and 4V

(c) 19A and 9V

(d) 112A and 12V

Topic 3: Kirchhoff’s Laws, Cells, Thermo emf & Electrolysis

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Answer:

Correct Answer: 41. (a)

Solution:

  1. (a) I=841+2+9=412=13A;

VPVQ=413×3=3volt



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