Question

an electric heater is rated 1500 watts . if it is operated for five hrs per day , what is the cost of electrical energy for 30 days at RS . five per day​

Answer 1

ELECTRIC HEATER POWER RATED =1500 W

TIME = 5 HRS DAILY

ELECTRICAL ENERGY =

POWER *TIME

E.E.= 1500*5/1000. KWH

E. E. =7.5 KWH

RATE PER UNIT = 5 RS

DAILY COST= 7.5*5

= 37.5 RS

MONTHLY COST = 37.5*30 =1125 RS


please mark it brainliest

Answer 2

Solution:-

Energy Consumed = Power × Time ( in hours)

=> E. C. = 1500 × 5

=> E.C = 7500

Hence,

Energy Consumed in 1 Day is 7500 Watt.

Now,

Energy Consumed in 30 Days = 7500 × 30

=> E. C in 30 days = 225,000 watt.

Converting Watt Hour into KwH.

=> Energy Consumed in 30 Days = 225,000 / 1000

=> E. C in 5 days = 225 KwH

Cost for 1 Day = Rupee 5.

=> Cost for 225 KwH = 225 × 5

=> Cowt for 225 KwH = 1,125 Rupee.

Hence,

Cost of Energy Consumed in 30 days is Rupee 1,125.