problem23_83

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

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23.83: a) , 2 1 1 R kQ E = RE V R kQ V = = so , 1 1 b) After electrostatic equilibrium is reached, with charge 1 Q now on the original sphere we have: 2 1 2 1 2 2 1 1 2 1 2 1 1 and R R Q Q R Q R Q V V Q Q Q = = = + = ( 29 ) ( 1 ) ( and ) ( ) 1 ( 1 2 1 1 1 2 1 1 1 2 1 2 1 2 2 2 1 2 1 2 1 2 1 R R Q R Q R R Q R R Q R Q Q Q R R Q Q R R R R + = + = + = + = + = c) The new potential is the same at each sphere’s surface: ( 29 2 1 2 1 2 1 1 1 1 ) ( 1 2 1 V R R kQ R kQ R Q k V R R = + = + = = d) The new electric field is not the same at each sphere’s surface:
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Unformatted text preview: ) ( ) 1 ( 1 2 1 1 2 1 1 2 1 1 1 2 1 R R R kQ R R kQ R Q k E R R + = + = ′ = ) ( ) 1 ( 1 2 2 1 2 2 1 2 2 2 2 2 1 R R R kQ R kQ R kQ E R R + = + = =...
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This document was uploaded on 02/06/2008.

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