Answers

2014-01-13T17:04:48+01:00
(a)  how can i draw such diagram here without no tool
(b) 1/R=1/R1+ 1/R2 +1/R3 +1/R4
         =1/R=1/4 +1/2 +1/4 +1/2=6/4=3/2
         =R=2/3 ohms
i.e. V=IR
     240=I x 2/3
     720=2I
  Ans   i.e. I = 360Amp.
(c) P=IV
       =360 X 240
 Ans      =86400 watts
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