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b. Determine the monthly electricity bill for the following load fitted in an electrical
installation.
(a) 12 lamps 50 watts each working 8 hours/ day.
(b) 10 ceiling fans 80 watts each working 5 hours/day.
CHCETE
(c) 3 kw heater working 1 hours dey.
(d) Water pump of 1 HP runs for tours per day
Rate of charges for light and fans is 3 rs /unit and heater and motor 4 Rs/unit.
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Answer:
a)12lamps50watts each working 8 hours/ day
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