problem24_74

University Physics with Modern Physics with Mastering Physics (11th Edition)

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24.74: a) C. 10 33 . 1 m 10 1.00 V) 3000 ( ) m 200 . 0 ( ) 50 . 2 ( 6 2 2 0 0 - - × = × = = = ε V d A CV Q b) C. 10 7.98 1/2.50) (1 C) 10 33 . 1 ( ) / 1 1 ( 7 6 - - × = - × = - = K Q Q i c) V/m. 10 01 . 3 ) m 200 . 0 ( (2.50) C 10 33 . 1 5 2 0 6 0 × = × = = = - ε A Q ε σ E d) J. 10 2.00 V) (3000 C) 10 33 . 1 ( 2 1 2 1 3 6 - - × = × = = QV U e) = × = = - 3 2 3 J/m 00 . 1 m) 0100 . 0 ( ) m (0.200 J 10 00 . 2 Ad U u or . J/m 00 . 1 V/m) 10 01 . 3 ( ) 50 . 2 ( 3 2 5 0 2 1 2 0 2 1 = × = = ε E u f) In this case, one does work by pushing the slab into the capacitor since the constant potential requires more charges to be brought onto the plates. When the charge
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This document was uploaded on 04/20/2008.

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