Question

Calculate the cost of energy consumed by a 300W TV set in 10 hours at the rate of Rs 5 /- per unit​

Answer 1

Answer:

Rs 450per month

Explanation:

Given : P=0.3 kW t=10hour per day

Energy consumed per day E=Pt=0.3×10=3 kWh per day

Total energy consumed per month. Et =30×3 =90kWh per month

Cost of electricity =Rs5 per unit i.e per kWh

∴ Monthly bill =Rs5×90=450Rs per month