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Let us now see what happens to such a piece of conductor if an electric field is applied. Download formulae handbook for icse class 9 and 10. It means how much charge is flowing with respect to time. Current electricity class 12 physics india science. Further, there are a lot of calculations to be done. Pradeep kshetrapal current electricity 3 formulas in current electricity direct current 1 electric current iqt q is charge passing in normal direction through a cross section of conductor in time t 2 drift velocity v d with electric field v d e is charge and m is mass on electron, e is electric field. The rate of flow of chrge through the conductor is called electric current. Electric current is basically caused by the flow of electrons or ions.
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