Question 47

If I is the current through a wire and is the charge of an electron, then the number of electrons crossing in t seconds will be given by:

Solution

I = Current

t = Time

e = Charge of electron

n = Number of electrons

We know,                        Q = ne

                                         Q = It

                                        ne = It

Number of electrons = n =

$$\frac{I \times t}{e}$$


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