An electric heater is rated 2kw, 250 V . Find the cost of running this heater for 3 hours at Rs.1.50 per unit?
full explanation please
Answers
Answer:
₹ 9
Explanation:
Electric heater rated 2kw that means it consumes 2000Watts for hour i.e., it takes 2units for an hour.
As mentioned, it turned for 3hours so the resultant power follows:
2 * 3 = 6kw
It consumes 6kw of power while it turned for three hours i.e.,6 units for 3hrs.
As the company charges ₹ 1.50 per unit then the number of cost will be calculated by product of charge multiply with units :
1.50 * 6 = 9.Rs
The company collects Rupees of 9 ( ₹ 9)
FOR BETTER UNDERSTANDING:
Let us take 3kwh,250V rated application then the company charges Rs.20 per unit.
While running it for half of the day then, 12hrs the company collects:
3*12=36units
36*20=720.Rs
Rupees of 72 they collect.
Thanks for your question.
Answer:
The cost of running this heater for 3 hours is
Explanation:EE= 3×2kWh is equal to 6kWh=6000Wh= six units. So the cost is ₹(1.5×6)=