1.

In a house 2 bulbs of 50 W each are used for 5 hours a day and two 70 W each fans are usedhours a day. Calculate the units of electricity consumed in a month of 30 days

Answer»

Power of each bulb=50W=0.05 KWpower of both the bulbs=2*0.05=0.1 KW

units used by the bulbs in a day=0.1*5=0.5 units

power of each fan=70W=0.07KWpower consumed by both fans=0.07*2=0.14units used by the fans in a day=0.14*10=1.4 unitstotal units consumed in a day=0.5+1.4=1.9 unitsunits of energy consumed in a month of 30 days=30*1.9=57 unitsans. therefore 57 units of electricity is consumed ina month in the house



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