Question

. A current of 4.4 amperes is flowing in a wire. How many electrons pass a given point in the wire in one second, if the charge on an electron is 1.6 10−19 coulomb? a) 1.5 1019 electrons b) 2.75 1019 electrons c) 3.25 1019 electrons d) 2.75 1015 electrons e) 3.25 1017 electrons

Answer 1

Answer:

b ) 2.75 1019 electron

Explanation:

as we now Q =ne

and, I =Q/t

now put the value of Q

I =ne/t

6.6 ampere×1sec /1.6 10-19 coulomb= 2.75 1019 electrons