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47 Four identical electrical lamps are labelled 1 5V 0 5A which describes the condition...

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47 Four identical electrical lamps are labelled 1 5V 0 5A which describes the condition necessary for them to operate at normal brightness A 12V battery of negligible interval resistance is connected to lamps as shown then 12V M 9 M R wwwww A The value of R for normal brightness of each lamp is 3 4 B The value of R for normal brightness of each lamp is 21 4 C Total power dissipated in circuit when all lamps are normally bright is 24W D Power dissipated in R is 21W when all lamps are normally bright

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