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The charge of an electron is 1.6 × 10^(-...

The charge of an electron is `1.6 × 10^(-19) C` . How many electrons strike the screen of a cathode ray tube each second when the beam current is 16 mA

A

`10^(19)`

B

`10^(17)`

C

`10^(15)`

D

`10^(13)`

Text Solution

Verified by Experts

The correct Answer is:
B
As, `"ne"=q=lxxt`
`nxx1.6xx10^(-19)=((16)/(1000))xx1`
`rArr" "n=(16xx10^(19))/(1000xx1.6)=10^(17)`
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