Answers

2015-06-04T21:46:39+05:30
1.   V = 3 V      I = 0.4 A      t = 5 min = 300 s
      E = V × I × t = 3 × 0.4 × 300 = 360 J 

2.   R = 400 Ω      I = 0.5 A
      V = I × R = 400 × 0.5 = 200 V
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