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Can electric charge exist in vacuum

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Solution

$D e a r s t u d e n t, N o, a n e l e c t r i c c h a r g e c a n n o t e x i s t i n a v a c u u m . A l l c h a r g e - c a r r i e r s a r e e i t h e r h o l e s i n a c r y s t a l o f m a s s i v e p a r t i c l e s o r e l e c t r o n s w h i c h w i l l r e q u i r e a m e d i u m . R e g a r d s$

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