Define current,give its mathematical expression. What is its $SI$ unit?
(N/A) Electric current is defined as the rate of flow of electric charge through a conductor.
Mathematically,it is expressed as $I = \frac{Q}{t}$,where $I$ is the current,$Q$ is the net charge flowing through a cross-section,and $t$ is the time taken.
The $SI$ unit of electric current is the ampere $(A)$.
Mathematically,it is expressed as $I = \frac{Q}{t}$,where $I$ is the current,$Q$ is the net charge flowing through a cross-section,and $t$ is the time taken.
The $SI$ unit of electric current is the ampere $(A)$.
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