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1. a current of 16 a is flowing in circuit for 0.5 seconds , the no. of electrons flowing is
2. (Original post by Hariharasudhan)
a current of 16 a is flowing in circuit for 0.5 seconds , the no. of electrons flowing is
The no. of electrons flowing is the charge divided by the charge of a single electron.
3. (Original post by Hariharasudhan)
a current of 16 a is flowing in circuit for 0.5 seconds , the no. of electrons flowing is
Charge is measured in Coulombs.

1 Coulomb is the quantity of electrons passing a point flowing at a rate of 1 Ampere in 1 second.

Each electron has an elementary electric charge of e = 1.602 x 10-19C

In other words 1 Coulomb = 1 / 1.602 x 10-19 = 6.242 x 1018 electrons.

You can do the rest.

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