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Question
State the relation between electric current; the number of electrons moving in a circuit and time in seconds.
Solution
If Q is the charge (in coulombs) flowing through a conductor in time t (in seconds) such that current I flows through the conductor then
Rate of flow of charge = `"Q"/"t"`
We know the rate of flow of charge = I = Electric current.
⇒ I = `"Q"/"t"`
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