a domestic electric circuit(220V) has a 5A fuse. how many bulbs of 100W,220V RATING CAN BE SAFELY USED IN THIS LINE
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Suppose x number of such bulbs can be used. Power of one bulb =100 watt Power of x bulbs (p)= 100 × x watts Potential difference (V) =220 volts I=5 A We know that P= V I 100x =200 ×5 x = 11 bulbs.
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