Question

6. An electrical appliance of power 2.5 kW is used for 3 hours each day. Find:
a) The electrical power consumed each day in kWh.
b) The electrical energy consumed in 30 days.
c) The cost of electrical energy consumed in 30 days at the rate of 5.25 per kWh.​

Answer 1

Answer:

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Explanation:

Correct option is

A

Rs.2100.00

Daily usage of electricity E

1

=2.5 kw×8=20 kwh=20 units

Energy used in one month E=30E

1

=30×20=600 units

Cost =Rs.600×3.5=Rs2100.00

Answer 2

Answer:

A) Electrical energy consumed E1=2.5*3=7.5kWh(Ans)

B) Electrical energy consumed in 30 days=30*7.5=225kWh(Ans)

C) Cost of electrical energy consumed in 30 days=Rs. 225*5.25=Rs. 1,181.25(Ans)

Explanation: