How many electrons per second pass throu...

How many electrons per second pass through a section of wire carrying a current of `0.7A`?

Text Solution

Verified by Experts

We known that `I = (q)/(t) = ("ne")/(t) , therefore, n = (it)/(e ) = (0.7xx1)/(1.6x10^(-19)`
So number of electrons in `n = 0.44xx10^(19)`

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Knowledge Check

How many electrons per second pass through a cross-section od a copper wire carrying 10^(-5)A ? (charge of 1 electron is 1.0 xx 10^(-19) coulomb ).

A

`1.6 xx 10^(-36)`

B

`1 xx 10^(+14)`

C

6250

D

62500

The charge of an electron is 1.6 xx 10^(-19) coulomb. How many electrons per seconds pass through a cross section of a Cu wir carrying 10^(-6) amp ?

A

300

B

1800

C

1200

D

600

The number of electrons per second which pass through a cross section of a copper wire carrying 10^(-16) A is

A

`1.6xx10^(-3)` e/s

B

60 e/s

C

625 e/s

D

`16xx10^(-2)` e/s

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