In the given circuit , R= 1ohm and ammeter shows reading of 7 A ,Find V .

Dear Student,



In triangle BFC, R2 and R3 are in series,r1=R2+R3r1=1+1=2 ohmNow, r1 is in parallel with R4,1r2=1r1+1R41r2=12+11r2=23 ohmIn triangle BAG, R1 and R7 are in series,r3=R1+R7r3=1+1=2Now, r3 is in parallel with R6,1r4=1r3+1R61r4=12+11r4=23 ohmNow, r2 and r4 are connecting in series,r5=r2+r4r5=23+23r5=43 ohmAccording to figure, r5 is connecting in parallel with R5,1r6=1r5+1R51r6=34+111r6=3+44r6=47 ohmNow, r6 is connecting in series with R8,r=r6+R8r=47+1r=4+77r=117 ohmcurrent, I=7 AV=IrV=7×117=11 V

  • 3
I=V/R

1=V/7

1*7=V

Therefore V=7
  • 1
Sorry but answer is 11
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