956_Physics ProblemsTechnical Physics

956_Physics ProblemsTechnical Physics - Chapter 34 P34.13 a...

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Chapter 34 297 P34.13 r == × 5 00 1 609 8 04 10 3 .. mi m mi m af bg S r × × = P 4 250 10 307 2 3 2 π µ W 48 . 0 41 0 W Wm 3 2 ej P34.14 I 100 796 2 W . 0 0 m 2 . u I c × = 265 10 265 8 Jm n 33 (a) uu E 1 2 13 3 . n 3 (b) B 1 2 13 3 3 (c) I = . Wm 2 P34.15 Power output = (power input)(efficiency). Thus, Power input Power out eff W 0.300 W × 100 10 333 10 6 6 . . and A I × × 6 3 . . W 1.00 10 W m m 32 2 . P34.16 I Bc r max 2 0 2 2 4 B r c max . . = F H G I K J F H G I K J = ×× 4 2 10 0 10 2 4 10 4 5 00 10 3 00 10 516 10 2 0 37 3 2 8 10 a f T Since the magnetic field of the Earth is approximately 51 0 5 × T , the Earth’s field is some 100 000 times stronger. P34.17 (a) IR 2 150 W Ar L × = × −− 2 2 0 900 10 0 080 0 4 52 10
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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