Question

125 billion electron in 1ns​

Answer 1

Answer:

1 billion electrons travel through a conductor in 1 nanosecond .

as you know,

1 billion electrons = 100 cr electrons

= 10^9 electrons

charge on each electron = 1.6 × 10^-19C

so, charge on 10^9 electrons = 1.6 × 10^-10C

1 nanosecond = 10^-9 second

we also know, current is charge per unit time .

so, current = 1.6 × 10^-10/10^-9 A

= 0.16 A = 160000 × 10^-6 A

= 160000 micro ampere.

hence, current in ampere is 160000\muμ A

Explanation:

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