Answer:
1)Power, P = 4 kW = 4000 W
Voltage, V = 220 V
Now, current is, I = P/V = 4000/220 = 18.18 A
Resistance is, R = V2/P = 2202/4000 = 12.1
Energy consumed in 2 h is = 4000 × 2/1000 = 2 kWh
So, cost of energy consumed is = 4.60 × 1.5 = Rs 6.9
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Answer:
1)Power, P = 4 kW = 4000 W
Voltage, V = 220 V
Now, current is, I = P/V = 4000/220 = 18.18 A
Resistance is, R = V2/P = 2202/4000 = 12.1
Energy consumed in 2 h is = 4000 × 2/1000 = 2 kWh
So, cost of energy consumed is = 4.60 × 1.5 = Rs 6.9