solve this numerical
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Explanation:
resistance are in series so current in all resistance will be 4A
so
R1=5/4=1.25ohm
R2=2/4=0.5ohm
R3=6/4=1.5ohm
voltage of bettery =V=5+2+6=13V
total resistance R=1.25+0.5+1.5=3.25ohm.
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