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1. Four bulbs, each of rating (100 W, 220 V) andconnected in parallel across a voltage supply of220 V, are operated for five hours daily. If all the bulbsare replaced by LEDS of rating (8 W, 220 V), howmany units of electrical energy will be saved everymonth (30 days)?(1) 55.2 units(2) 60 units(3) 4.8 units(4) 32 units |
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Answer» 1. Four bulbs, each of rating (100 W, 220 V) and connected in parallel across a voltage supply of 220 V, are operated for five hours daily. If all the bulbs are replaced by LEDS of rating (8 W, 220 V), how many units of electrical energy will be saved every month (30 days)? (1) 55.2 units (2) 60 units (3) 4.8 units (4) 32 units |
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