solve this one........
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This should be the answer. Hope it helps:)
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R1+ R2 = 6+3=9 (as they’re in series)
Current drawn by R1,R2 using ohms law
I= V/R =4/9A = 0.44A = ans (i)
R3+R4 = 12+3 = 15 (as they’re in series)
Current drawn by R3,R4 using ohms law,
I=V/R = 4/15 (*)
Potential difference across 12ohm resistor using ohm’s law
V=IR
V= 4/15 x 12 (From *)
=16/5 = 3.2V = ans (ii)