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Grade 12th passElectric Current

Two batteries of 7 volts and 13 volts and internal resistance 1 ohm and 2 ohm respectively are connected in parallel with a resistance of 12 ohm. Find the current through each branch of the circuit.
Book Ans: 0.3684; and 0.1842

Crazy

7 Years agoGrade 12th pass

2 Answers

Shivansh

7 Years ago

The answers are given in fractions, convert to decimals to match with the book

Dnyaneshwari Ganesh Nanavare

4 Years ago

-12(I1+I2) -1I1+7=0

12(I1+I2) +1I1=7 _______1

FOr the loop CEFCD

-12(I1+I2) -2I=13 ________2

From 1&2

2I -I1=13-7=6

I1=2I2-6

substititing I1in value in 2

I2=85/38=2.237A

I1=2I 2-6

I1=2 x 85/38-6=-1.526A

I=I1+I2=-1.526+2.237=0.711A

Potential difference across 12 ohm resistance

V=0.711 x 12=8.53 v

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