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Q. The potential difference between points a and b in the circuit of figure is $(i_1 = 1.0 A, i_3 = 0.6 A)$Physics Question Image

Current Electricity

Solution:

$i_{1}+i_{2}=i_{3}$
$\Rightarrow i_{2}=-0.4 A$
$V_{a}-V_{b} =6+i_{2} R_{2}$
$=6-0.4(3.5)=4.6 V$