Q. If the current through 15 ohm resistance is 3 A, find 1) current through 20 ohm and 30 ohm resistance respectively 2) voltage across the whole circuit 3) total power consumed Share with your friends Share 2 Sakshi Kanwar answered this Dear Student Total current=3AThe resistors 20ohm and 30ohm are parallel so the voltage will be same as they are parallel20I1=30I2I1=3/2I1I1+I2=33/2I2+I2=3I2=6/5AI1=9/5ANet resistanceR is given byThe resistors 20ohm and 30 ohm are parallel to each other1Rp=120+130=12ohmRp and 15ohm are in series so Rnet=15+12=27ohmV=IR=total current×net resistance=3×27=81VFor further queries please ask in another threat so that we can help you in a better way.Hope this information will clear your doubts about topic. If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible. Regards 1 View Full Answer Hriday Verma answered this its easy ☺☻.. 1 Shraddha answered this (a) 15ohms*3A= 45V (b) 1/20+1/30=5/6 total resistance=6/5 current passing = 45*5/6 = 37.5 (c) Power = VI = 45*21/5 = 189 W 0
