How many 40 watt ; 220volt lamps can be safely connected to a 220volt,5amphere line?
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Plz answer mine firstAn object comprises of a uniform ring of radius R and uniform chord AB .which cannot be the centre of mass of the obj?
a.(R/3,R/3)
b.(R/root 2,R/root 2)
c.(R/4,R/4)
d. None of above
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