Question

-)
1.5 a current is flowing through a metall
wire. If it flows for 3 hrs, how many elect
would flow through the wire?
a) 2.05 x 1022 electrons
1.0 x 1023 electrons
c) 1024 electrons
644.5 x 1023 electrons​

Answer 1

Answer:

(B) 1.01x$10^{23}$

Explanation:

According to this Faraday's first law,

 Q=I×t

   =1.5×3×60×60=16200C

Charge on one electron =1.601×$10^{-19}$C

∴ total electron count =$\frac{16200}{1.601X10^{-19} }$

                                    =1.01x$10^{23}$

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