an electric heater of 60 W is used 2h per day. Calculate the units of energy consumed in 30 days by it.
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Power of electric heater = 60 W
Per day electric consumption = 2x 60 = 120 wH
30 days = 30 x 120 = 3600 J = 3.6kwH = 3.6 units
Per day electric consumption = 2x 60 = 120 wH
30 days = 30 x 120 = 3600 J = 3.6kwH = 3.6 units
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1
power of electric bulb= 60W
=0.06KW h
time used per day=2 hours
energy= power×time taken
= 0.06KW×2h = 0.12KW h
energy consumed in one day= 0.12KH h
energy consumed in 30 days = 0.12×30 =3.60KW h or 3.60 units
=0.06KW h
time used per day=2 hours
energy= power×time taken
= 0.06KW×2h = 0.12KW h
energy consumed in one day= 0.12KH h
energy consumed in 30 days = 0.12×30 =3.60KW h or 3.60 units
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