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Why current is not formed in solid conductors in absence of electric field ? |
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Answer» Solution :`rArr` In solid conductors electric CURRENT can be explained as follows. `rArr` When METALLIC solid are formed, valence electron get separated from their parent atoms and become free electron positive ions are grounded in definite three dimensional geometric arran gement. `rArr`In ABSENCE of external electric field these positive ion, depending on their temperature oscillate about their mean position. Electron move randomly in space between positive ions. `rArr` During their moHon electron collide with positive ion and due to these collision their DIRECTION keeps on CHANGING. ` ` At a given time there is no unidirectional flow of electron in particular direction in given cross- section. Hence, current is not formed. |
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