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problem26_16 - 26.16 a R60 W V2 P I 60 W(120 V 2 60 W I 200...

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26.16: a) . 72 W 200 ) V 120 ( ; 240 W 60 ) V 120 ( 2 2 W 200 2 2 W 60 = = = = = = P V R P V R . A 769 . 0 ) 72 240 ( V 240 ε W 200 W 60 = + = = = R I I b) W. 6 . 42 ) 72 ( ) A 769 . 0 ( ; W 142 ) 240 ( ) A 769 . 0 ( 2 2 W 200 2 2 W 60 = = = = = = R I P R I P c) The 60 W bulb burns out quickly because the power it delivers (142 W) is 2.4 times
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