Question

calculate electric energy consumed when 3 bulbs of 100w, 2 fans of 60w, television of 100w is used 6 hours daily in a month of 30 days. if electric energy cost ₹ 3 per unit , calculate complete expenditure for that month

Answer 1

time = 6 x 30 hr =180 hr
total power = 3×100+ 2×60+100 W = 520 w
ENERGY=power x time
Energy= 520 x 180 = 93600 w h
or 93.6 kWh
cost = 93.6 x 3 = 280.8 ₹