A 1000W heater is used for 1 hr everyday for 30 days (around 1 month). Find the cost of electricity if the rate is Rs. 3/unit.
Answers
Explanation:
hey mate here is ur answer
1000× 1×30= 30000
cost of electricity per unit I rs 3
so.. 30000/1000= 30kw/h
so 1kilowatt is equal to 1unit
30 kilowatt is equal to 30 units
so 30×3= rs 90
hope it helps you please mark me as brainliest plsssss
Given,
A 1000W heater is used for 1 hr every day for 30 days (around 1 month).
The total cost of each unit of electricity = Rs. 3
To find,
The total cost of electricity.
Solution,
We can simply solve this numerical problem by using the following process:
Mathematically,
Power (P)= Energy consumed (E) ÷ Time (T)
=> Energy consumed (E) = Power (P) x Time (T)
Now, according to the question;
Total units of energy consumed in one day by the heater = Power (P) x Time (T)
= 1000 W x 1 hour
= 1000 Wh = 1 kWh = 1 electrical unit
( Since 1 kWh = 1 electrical unit )
So, the total units of energy consumed in 30 days by the heater
= (units of energy consumed in one day by the heater)×30 days
= 1 electrical unit × 30 days
= 30 electrical units
Now, according to the question;
The total cost of electricity consumed by the heater in the 30 days (one month)
= (total units of energy consumed in 30 days by the heater)×(cost of each unit of electricity)
= 30 electrical units × Rs. 3
= Rs. 90
Hence, the total cost of electricity consumed by the heater in the 30 days (one month) is equal to Rs. 90.