Physics, asked by vscgodda, 2 months ago

Q. A device consumes 180000000 J of energy in a month. If the cost
of electricity per unit is 3.5. What is the cost of operating the bulb
monthly?​

Answers

Answered by nihaln2018
1

Answer:

Explanation:

Five bulbs consume the power of 100 W each.

The total power consumed by 5 bulbs = 5 x 100 = 500 W = 0.5 kilowatt

Electrical energy consumed daily is, E = P x t = 0.5 kW x 10 hours = 5 kWh.

Thus, total electrical energy consumed for 30 days = 5 kWh x 30 days = 150 kWh or 150 units.

The cost of 1 unit of electricity = Rs. 4

Thus, the total cost of electricity = Rs. 4 x 150 = Rs. 600

Answered by savageadiya1110
0

Answer:

Energy = 18 × 10^7

Cost = 3.5 per unit

Energy in kWh

18×10^7 ÷ 3.6 × 10^6

180÷ 3.6

1800÷36

= 50kwh

cost = 50 × 3.5

= rs 175

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