**A wire has a current of 6.0 mA in it. How many electrons pass a given point in a minute?**

A) 5

B) 360

C) 2.3 × 1018

D) 5.4 × 10-15

**Answer:**

Given

current =.6*10^-3 A
charge/time=6*10^-3 A

Here time =60 s

charge=?

so charge=6

*10^-3 A*60 s=0.36 coulomb

we know that

q=ne

where (n) is the number of electrons

and (e) is the charge on one electron =1.6

*10^-19 coulomb*

so n=q/e= 0.36 A/1.610^-19 coulomb=2.5*10^18

so n=q/e= 0.36 A/1.6

so answer is( c)