Q.
The figure below shows currents in a part of electric circuit. The current i is
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a
1.7 A
b
3.7 A
c
1.3 A
d
1 A
answer is A.
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Detailed Solution
According to Kirchhoff's first lawAt junction A, iAB = 2 + 2 = 4AAt junction B, iAB = iBC - 1 = 34At junction C, i=iBC−1.3=3−1.3=1.7A
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