a) Energy transformed in 6 hrs = 2.5 × 6 = 15 kWh. Cost = 15 × 1.10 × 6 = Ksh 99.00
b) Power = V2 / R = 2500. R = (240 × 240) /2500 = 23.04 ${\Omega}$.
Current = V / R = (240 × 2500) / (240 × 240) = 10.42 A
Power = V I = (2500 × 120) / 240 = 1,250 W.
Mutiso answered the question on October 16, 2018 at 18:09
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