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Answers
Explanation:
1.
(a) By this statement we understand that the appliance uses a power of 60W when it is supplied a voltage of 150V
(b) We need to find current now
Power = Voltage× Current
Current = 60W/150V
Current = 0.4 Ampere
2.
The power is given to be 1.5kW or 1500W
Time given is 1800 sec or 1/2 hours
Energy consumed= Power × time
Energy = 1.5KW × 1/2hrs
Energy = 0.75 Kilo watt hour
Energy in joules= 2.7×10^6 J
3.
Total electrical consumption = 12kWh per day
Rate =Rs 6.25 per unit
Total days = 30
Total rate = 12 × 30 × 6.25
Total rate for 30 days = Rs 2250
Answer:
1.
(a) By this statement we understand that the appliance uses a power of 60W when it is supplied a voltage of 150V
(b) We need to find current now
Power = Voltage× Current
Current = 60W/150V
Current = 0.4 Ampere
2.
The power is given to be 1.5kW or 1500W
Time given is 1800 sec or 1/2 hours
Energy consumed= Power × time
Energy = 1.5KW × 1/2hrs
Energy = 0.75 Kilo watt hour
Energy in joules= 2.7×10^6 J
3.
Total electrical consumption = 12kWh per day
Rate =Rs 6.25 per unit
Total days = 30
Total rate = 12 × 30 × 6.25
Total rate for 30 days = Rs 2250
Explanation:
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