How is the electricity bill of a household calculated? if a 100 W electric bulb is lighted for 20 hours how much electrical energy will be consumed ? Also, find the cost, if 1 unit cost ₹4
(Please Answer Correctly Its Very Important)
Answers
physics/class-10
Given :-
☄ Power of bulb, P = 100W = 0.1 kW
☄ Cost of 1 Unit (kWh) = ₹ 4
☄ Time, t = 20h
To find :-
the electric energy consumed and the cost
Solution :-
The electrical energy consumed by an electrical appliance is given by the product of its power rating and the time for which it is used.
➠ Electrical energy, E = P × t
➠ E = 0.1 × 20 kWh
➠ E = 2 kWh
so, the electrical energy consumed is 2kWh.
Cost of 1 unit = ₹4
Cost of 2 unit = ₹(2 × 4) = ₹8
the cost of tht electrical energy consumed is 8Rs.
#sanvi....
Answer:
physics/class-10
Given :-
☄ Power of bulb, P = 100W = 0.1 kW
☄ Cost of 1 Unit (kWh) = ₹ 4
☄ Time, t = 20h
To find :-
the electric energy consumed and the cost
Solution :-
The electrical energy consumed by an electrical appliance is given by the product of its power rating and the time for which it is used.
➠ Electrical energy, E = P × t
➠ E = 0.1 × 20 kWh
➠ E = 2 kWh
so, the electrical energy consumed is 2kWh.
Cost of 1 unit = ₹4
Cost of 2 unit = ₹(2 × 4) = ₹8
the cost of tht electrical energy consumed is 8Rs.
please brainlist answer