Question

Here is your question

An electric heater draws a current of 10 ampere from a 220 volt supply what is the cost of heaters for 8 hours everyday for 45 days if the cost of 1 unit is Rs 6.70

Answer 1

Hii

you are welcome

I = 10A

v =220v

p = vi

p = 10*220=2200

total number of hour =45*8=360

total cost =360*2200*6.70= ₹5306400

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Answer 2

Answer:

Given

I = 10 A ; V = 220 V ;

We know that E = VIT

Energy = 220 X 10 X 8 X 45

= 792 X $10^3$ = 792 kwh

We know that 1 unit is 1 kwh

So total energy consumed in a month is 792 units.

Therefore Cost = 792 X 6.70

= ₹ 5306400 Ans.